It is the consequent continuation of "HPLC of Polymers" from 1999 by the same authors. Like its 'predecessor', this book discusses the theoretical background, equipment, experimental procedures and applications for each separation technique, but in contrast treats multi-dimensional and coupled techniques. "Multidimensional HPLC of Polymers" intends to review the state of the art in polymer chromatography and to summarize the developments in the field during the last 15 years. With its tutorial and laboratory manual style it is written for beginners as well as for experienced chromatographers, and will enable its readers (polymer chemists, physicists and material scientists, as well as students of polymer and analytical sciences) to optimize the experimental conditions for their specific separation problems.
the drama of the front lines.”
-Richard Danzig, former secretary of the navy
The first major bioterror event in the United States-the anthrax attacks in October 2001-was a clarion call for scientists who work with “hot” agents to find ways of protecting civilian populations against biological weapons. In The Demon in the Freezer, his first nonfiction book since The Hot Zone, a #1 New York Times bestseller, Richard Preston takes us into the heart of Usamriid, the United States Army Medical Research Institute of Infectious Diseases at Fort Detrick, Maryland, once the headquarters of the U.S. biological weapons program and now the epicenter of national biodefense.
Peter Jahrling, the top scientist at Usamriid, a wry virologist who cut his teeth on Ebola, one of the world’s most lethal emerging viruses, has ORCON security clearance that gives him access to top secret information on bioweapons. His most urgent priority is to develop a drug that will take on smallpox-and win. Eradicated from the planet in 1979 in one of the great triumphs of modern science, the smallpox virus now resides, officially, in only two high-security freezers-at the Centers for Disease Control in Atlanta and in Siberia, at a Russian virology institute called Vector. But the demon in the freezer has been set loose. It is almost certain that illegal stocks are in the possession of hostile states, including Iraq and North Korea. Jahrling is haunted by the thought that biologists in secret labs are using genetic engineering to create a new superpox virus, a smallpox resistant to all vaccines.
Usamriid went into a state of Delta Alert on September 11 and activated its emergency response teams when the first anthrax letters were opened in New York and Washington, D.C. Preston reports, in unprecedented detail, on the government’s response to the attacks and takes us into the ongoing FBI investigation. His story is based on interviews with top-level FBI agents and with Dr. Steven Hatfill.
Jahrling is leading a team of scientists doing controversial experiments with live smallpox virus at CDC. Preston takes us into the lab where Jahrling is reawakening smallpox and explains, with cool and devastating precision, what may be at stake if his last bold experiment fails.
Every brain begins as a female brain. It only becomes male eight weeks after conception, when excess testosterone shrinks the communications center, reduces the hearing cortex, and makes the part of the brain that processes sex twice as large.
Louann Brizendine, M.D. is a pioneering neuropsychiatrist who brings together the latest findings to show how the unique structure of the female brain determines how women think, what they value, how they communicate, and whom they’ll love. Brizendine reveals the neurological explanations behind why
• A woman remembers fights that a man insists never happened
• A teen girl is so obsessed with her looks and talking on the phone
• Thoughts about sex enter a woman’s brain once every couple of days but enter a man’s brain about once every minute
• A woman knows what people are feeling, while a man can’t spot an emotion unless somebody cries or threatens bodily harm
• A woman over 50 is more likely to initiate divorce than a man
Women will come away from this book knowing that they have a lean, mean communicating machine. Men will develop a serious case of brain envy.
Herbal remedies have been around for years and many people count on them every day. Some carry a strong belief that there is no need to rely on medications. Among the alternative medicine approaches, essential oils are used for a number of different conditions and offer a variety of benefits.
After a stress filled day, it would be nice to come home and just relax. Some have found that they can get fast relaxation by taking a warm bath using essential oils. A mix of the oils and the aromas can relax one so much that it puts the client to sleep.
Because essential oils are extracted from plant material, they often contain the nutritional essence of the plants themselves. In concentrated form, they can impart huge health benefits, when they are ingested into the body.
Essential Oils will guide you through the various uses and benefits of essential oils, highlighting how to use them to lose weight, relieve pain, maintain your skin, as well as strengthen your hair. The various uses of essential oils is nearly limitless. Come discover what many others have: that there is now a safer, more natural way to protect yourself and your family.
The easy way to take the confusion out of organic chemistry
Organic chemistry has a long-standing reputation as a difficult course. Organic Chemistry I For Dummies takes a simple approach to the topic, allowing you to grasp concepts at your own pace.
This fun, easy-to-understand guide explains the basic principles of organic chemistry in simple terms, providing insight into the language of organic chemists, the major classes of compounds, and top trouble spots. You'll also get the nuts and bolts of tackling organic chemistry problems, from knowing where to start to spotting sneaky tricks that professors like to incorporate.Refreshed example equations New explanations and practical examples that reflect today's teaching methods Fully worked-out organic chemistry problems
Baffled by benzines? Confused by carboxylic acids? Here's the help you need—in plain English!
Why do you fall in love with one person rather than another? In this fascinating and informative book, Helen Fisher, one of the world's leading experts on romantic love, unlocks the hidden code of desire and attachment. Each of us, it turns out, primarily expresses one of four broad personality types—Explorer, Builder, Director, or Negotiator—and each of these types is governed by different chemical systems in the brain. Driven by this biology, we are attracted to partners who both mirror and complement our own personality type.
Until now the search for love has been blind, but Fisher pulls back the curtain and reveals how we unconsciously go about finding the right match. Drawing on her unique study of 40,000 men and women, she explores each personality type in detail and shows you how to identify your own type. Then she explains why some types match up well, whereas others are problematic. (Note to Explorers: be prepared for a wild ride when you hitch your star to a fellow Explorer!) Ultimately, Fisher's investigation into the complex nature of romance and attachment leads to astonishing new insights into the essence of dating, love, and marriage.
Based on entirely new research—including a detailed questionnaire completed by seven million people in thirty-three countries—Why Him? Why Her? will change your understanding of why you love him (or her) and help you use nature's chemistry to find and keep your life partner.
Gas-Liquid And Liquid-Liquid Separators is divided into six parts: Part one and two covers fundamentals such as: physical properties, phase behaviour and calculations. Part three through five is dedicated to topics such as: separator construction, factors affecting separation, vessel operation, and separator operation considerations. Part six is devoted to the ASME codes governing wall thickness determination of vessel weight fabrication, inspection, alteration and repair of separators500 illustrationsEasy to understand calculations methodsGuide for protecting downstream equipmentHelps reduce the loss of expensive intermediate endsHelps increase product purity
As a new mom, Jessica Alba wanted to create the safest, healthiest environment for her family. But she was frustrated by the lack of trustworthy information on how to live healthier and cleaner--delivered in a way that a busy mom could act on without going to extremes. In 2012, with serial entrepreneur Brian Lee and environmental advocate Christopher Gavigan, she launched The Honest Company, a brand where parents can find reliable information and products that are safe, stylish, and affordable. The Honest Life shares the insights and strategies she gathered along the way.
The Honest Life recounts Alba's personal journey of discovery and reveals her tips for making healthy living fun, real, and stylish, while offering a candid look inside her home and daily life. She shares strategies for maintaining a clean diet (with favorite family-friendly recipes) and embraces nontoxic choices at home and provides eco-friendly decor tips to fit any budget. Alba also discusses cultivating a daily eco beauty routine, finding one's personal style without resorting to yoga pants, and engaging in fun, hands-on activities with kids. Her solutions are easy, chic, and down-to-earth: they're honest. And discovering everyday ways to live naturally and authentically--true to you--could be honestly life-changing.
Designed for those new to FTIR, but with enough reference material to appeal to journeyman and expert spectroscopists, this book does not demand any extensive familiarity with chemistry or physics. Specializing in concise and comprehensible explanations of FTIR topics, the author introduces the field of infrared spectroscopy, including the strengths and weaknesses of FTIR as a chemical analysis technique. He then describes the instrument itself and explores topics such as how an interferometer generates a spectrum, optimization of spectral quality, and which tests are used to monitor instrument health.
The book discusses how to properly use spectral processing to increase the information of a spectrum without damaging the data and takes considerable care in instructing on sample preparation, as good sample preparation constitutes half the battle in extracting good data. The final chapters examine single analyte quantitative analysis and conclude with an overview of infrared microscopy.
Drawing on the experience and knowledge of the author as both a professor and practitioner, Fundamentals of Fourier Transform Infrared Spectroscopy offers up-to-date information given in clear, easily understood language to appeal to beginner and expert spectroscopists alike. The author maintains a website and blog with supplemental material. His training course schedule is also available online.
Nickel, cobalt and platinum group metals are key elements for materials processing. They occur together in one book because they (i) map together on the periodic table (ii) occur together in many ores and (iii) are natural partners for further materials processing and materials manufacturing. They all are, for example, important catalysts – with platinum group metals being especially important for reducing car and truck emissions. Stainless steels and CoNiFe airplane engine super alloys are examples of practical usage.
The product emphasises a sequential, building-block approach to the subject gained through the author’s previous writings (particularly Extractive Metallurgy of Copper in four editions) and extensive experience. Due to the multiple metals involved and because each metal originates in several types of ore – e.g. tropical ores and arctic ores this necessitates a multi-contributor work drawing from multiple networks and both engineering and science.Synthesizes detailed review of the fundamental chemistry and physics of extractive metallurgy with practical lessons from industrial consultancies at the leading international plantsDiscusses Nickel, Cobalt and Platinum Group Metals for the first time in one bookReviews extraction of multiple metals from the same tropical or arctic oreIndustrial, international and multidisciplinary focus on current standards of production supports best practice use of industrial resources
Organic Synthesis: The Disconnection Approach, 2nd Edition introduces this important technique, to help students to design their own organic syntheses. There are forty chapters: those on the synthesis of given types of molecules alternate with strategy chapters in which the methods just learnt are placed in a wider context. The synthesis chapters cover many ways of making each type of molecule starting with simple aromatic and aliphatic compounds with one functional group and progressing to molecules with many functional groups. The strategy chapters cover questions of selectivity, protection, stereochemistry, and develop more advanced thinking via reagents specifically designed for difficult problems.
Examples are drawn from pharmaceuticals, agrochemicals, natural products, pheromones, perfumery and flavouring compounds, dyestuffs, monomers, and intermediates used in more advanced synthetic work. Reasons for wishing to synthesise each compound are given.
This second edition has been fully revised and updated with a modern look. Recent examples and techniques are included and illustrated additional material has been added to take the student to the level required by the sequel, “Organic Synthesis: Strategy and Control”.
Several chapters contain extensive new material based on courses that the authors give to chemists in the pharmaceutical industry.
Organic Synthesis: The Disconnection Approach, 2nd edition provides a full course in retrosynthetic analysis for chemistry and biochemistry students and a refresher for organic chemists working in industry and academia.
Drawing on the expertise of leading researchers in their fields, Current Topics in Elastomers Research provides the first comprehensive overview of rubber research activities from around the world. Divided into seven sections, this seminal work begins with a general introduction before presenting the chemistry and structure-property relationships of a variety of new materials and composites. The second section covers the most important rubber ingredients along with the current thinking on their mechanism of action.
Two important new characterization techniques, 3D-TEM and AFM, are evaluated in the third section, while the fourth considers the physics and engineering aspects of elastomers, including reinforcement mechanisms, viscoelastic properties, fatigue life, abrasion, adhesion, rheology, mixing and processing, and the effects of time, temperature and fluids. The fifth section pays respect to the tire, a driving impetus for research and one of the major applications of rubber. Finally, the book includes two chapters on eco-friendly technology and recycling, perhaps the most important engineering topic in this age of globalization and environmental responsibility.
Barring the inaccessibility of truly classified information, Current Topics in Elastomers Research is a complete review of current elastomers research and applications, compiling once-guarded knowledge and outlining the future directions of the field.
• first to provide exam data-mining in study guide
• allow students to focus on most examined concepts – cut study time and increase efficiency
• an expert guide to lead one abstract knowledge and wisdom
• provides exact, accurate, complete and independent self–education
• the only guide currently that covers Planning Questions
• advanced trade book
• complete and concise eBook editions available
• also suitable for
• Cambridge GCE AL (H1/H2)
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• Primary level, Secondary level, GCE O-level, GCE A-level, iGCSE, Cambridge A-level, Hong Kong DSE
• visit www.yellowreef.com for sample chapters and more
Divided into five chapters, the book starts by giving an introduction to the discovery of active nitrogen, the energy content, and the methods by which this may be produced. The succeeding part deals with light emissions from active nitrogen system. This discussion includes molecular spectrum of nitrogen, emission from atomic energy and condensed active nitrogen, emission from molecular species with electronic energy levels below and above 9.76 eV, and light-emitting systems of active nitrogen.
The next part focuses on theories on active nitrogen. The theories discussed are long-lived Lewis-Rayleigh afterglow and short-lived, energetic afterglows. Numerical representations are provided to test the validity of the theories. Lastly, the discussions end with chemical reactions of active nitrogen. Topics contained in this part are text on recombination of N(4S) atoms; rate constants for reactions presumably induced by direct N(4S) attack; reactions caused by excited nitrogen molecular attack; and mechanism for reactions of active nitrogen that seem to influence direct N(4S) attack.
The book is a valuable source of information for readers interested in the research on active nitrogen.
With its balanced presentation of polymer chemistry, physics, and engineering applications, the Third Edition of this classic text continues to instill readers with a solid understanding of the core concepts underlying polymeric materials. Both students and instructors have praised the text for its clear explanations and logical organization. It begins with molecular-level considerations and then progressively builds the reader's knowledge with discussions of bulk properties, mechanical behavior, and processing methods.
Following a brief introduction, Fundamental Principles of Polymeric Materials is divided into four parts:
Part 1: Polymer Fundamentals
Part 2: Polymer Synthesis
Part 3: Polymer Properties
Part 4: Polymer Processing and Performance
Thoroughly Updated and Revised
Readers familiar with the previous edition of this text will find that the organization and style have been updated with new material to help them grasp key concepts and discover the latest science, techniques, and applications. For example, there are new introductory sections on organic functional groups focusing on the structures found in condensation polymerizations. The text also features new techniques for polymer analysis, processing, and microencapsulation as well as emerging techniques such as atom transfer radical polymerization.
At the end of each chapter are problems—including many that are new to this edition—to test the reader's grasp of core concepts as they advance through the text. There are also references leading to the primary literature for further investigation of individual topics.
A classic in its field, this text enables students in chemistry, chemical engineering, materials science, and mechanical engineering to fully grasp and apply the fundamentals of polymeric materials, preparing them for more advanced coursework.
Since the publication of the highly successful first edition of Basic Gas Chromatography, the practice of chromatography has undergone several notable developments. Basic Gas Chromatography, Second Edition covers the latest in the field, giving readers the most up-to-date guide available, while maintaining the first edition's practical, applied approach to the subject and its accessibility to a wide range of readers.
The text provides comprehensive coverage of basic topics in the field, such as stationary phases, packed columns and inlets, capillary columns and inlets, detectors, and qualitative and quantitative analysis. At the same time, the coverage also features key additions and updated topics including:Gas chromatography-mass spectrometry (GC-MS) Sampling methods Multidimensional gas chromatography Fast gas chromatography Gas chromatography analysis of nonvolatile compounds Inverse gas chromatography and pyrolysis gas chromatography
Along with these new and updated topics, the references, resources, and Web sites in Basic Gas Chromatography have been revised to reflect the state of the field. Concise and fundamental in its coverage, Basic Gas Chromatography, Second Edition remains the standard handbook for everyone from undergraduates studying analytical chemistry to working industrial chemists.
Nessa Carey, a leading epigenetics researcher, connects the field’s arguments to such diverse phenomena as how ants and queen bees control their colonies; why tortoiseshell cats are always female; why some plants need cold weather before they can flower; and how our bodies age and develop disease. Reaching beyond biology, epigenetics now informs work on drug addiction, the long-term effects of famine, and the physical and psychological consequences of childhood trauma. Carey concludes with a discussion of the future directions for this research and its ability to improve human health and well-being.
Beginning with simple theoretical models and experimental techniques, the book develops the complete repertoire of theoretical principles and experimental techniques necessary for understanding and implementing the most sophisticated NMR experiments.
Important new techniques and applications of NMR spectroscopy have emerged since the first edition of this extremely successful book was published in 1996. This updated version includes new sections describing measurement and use of residual dipolar coupling constants for structure determination, TROSY and deuterium labeling for application to large macromolecules, and experimental techniques for characterizing conformational dynamics. In addition, the treatments of instrumentation and signal acquisition, field gradients, multidimensional spectroscopy, and structure calculation are updated and enhanced.
The book is written as a graduate-level textbook and will be of interest to biochemists, chemists, biophysicists, and structural biologists who utilize NMR spectroscopy or wish to understand the latest developments in this field.Provides an understanding of the theoretical principles important for biological NMR spectroscopyDemonstrates how to implement, optimize and troubleshoot modern multi-dimensional NMR experimentsAllows for the capability of designing effective experimental protocols for investigations of protein structures and dynamicsIncludes a comprehensive set of example NMR spectra of ubiquitin provides a reference for validation of experimental methods
Assuming no prior knowledge, the book discusses everything from the simplest mixed acid nitration of toluene, to the complex synthesis of highly energetic caged nitro compounds.Reviews laboratory and industrial methods, which can be used to introduce aliphatic C-nitro, aromatic C-nitro, N-nitro, and nitrate ester functionality into organic compounds Discusses the advantages and disadvantages of each synthetic method or route, with scope, limitations, substrate compatibility and other important considerations Features numerous examples in the form of text, reaction diagrams, and tables.
The first book to consider this topic, Click Chemistry for Biotechnology and Materials Science examines the fundamentals of click chemistry, its application to the precise design and synthesis of macromolecules, and its numerous applications in materials science and biotechnology. The book surveys the current research, discusses emerging trends and future applications, and provides an important nucleation point for research.
Edited by one of the top 100 young innovators with the greatest potential to have an impact on technology in the 21st century according to Technology Review and with contributions from pioneers in the field, Click Chemistry for Biotechnology and Materials Science provides an ideal reference for anyone wanting to learn more about click reactions.
Note: CD-ROM/DVD and other supplementary materials are not included as part of eBook file.
The free suite of Autodesk 123D software offers all the tools you need to capture or design three-dimensional objects and characters. This book tells you how to harness that power to print or fabricate just about anything you can imagine.
Want to make something mechanical or structural that's based on precise measurements? 123D Design can help! Ready to create something cool based on a character, an organic shape, or something found in nature? 123D Catch, 123D Meshmixer, and 123D Sculpt+ will assist.
Learn how to use these tools, plus 123D Make--perfect for prototyping designs you'll cut with a CNC mill--to take your creativity to a new level.
An ideal book for Makers, hobbyists, students, artists, and designers (including beginners!), this book opens up the inexpensive world of personal fabrication to everyone.
In 3D CAD with Autodesk 123D, you’ll:Meet the classic "Stanford bunny" and learn to modify it with MeshmixerScan and 3D print anything around youDesign your own 3D-printed guitarFind models in the Sculpt+ community and make a skeleton!Build a birdhouse, prototype a playground, or create a statueLearn everything from basics to troubleshooting skillsGet started making right away
Mathematical methods are provided as design tools, and are often simplified via curve-fitting techniques that are particularly usable by handheld calculators. Useful equations and numerically solved examples, using situations encountered in practice, are supplied. Above all, this volume is a comprehensive and useful reference where the reader can find design rules and principles of high frequency applicators and probes for material processing and sensing applications. Electronic and electrical R&D engineers, physicists, university professors and students will all find this book a valuable reference.
Mehrdad Mehdizadeh is with the DuPont Company, Engineering Research & Technology Division in Wilmington, Delaware. His areas of expertise include high frequency hardware and electromagnetic methods of processing, sensing, and characterization of materials. His work and innovation in industrial, scientific, and medical applications of radio frequency and microwaves has resulted in 19 US patents and a number of publications. He earned his Ph.D. and M.S. from Marquette University (1983, 1980), and a B.S. from Sharif University of Technology (1977), all in electrical engineering. Dr. Mehdizadeh is a Senior Member of the Institute of Electrical and Electronic Engineers (IEEE ), Sigma Xi (Scientific Research Society), the International Microwave Power Institute (IMPI ), and a voting member of IEEE Standard Association.• Books in this area are usually theoretical; this book provides practical information for those who actually intend to design a system
• Features real world and numerically solved examples, and curve-fitted simple equations to replace complex equations provided in typical texts
• Author is a voting member of IEEE Standards Association
Part one covers the principles of fabric construction as applied to textile design, with chapters on fundamental principles, woven and knitted textile design. Part two discusses surface approaches to textile design, with chapters on such topics as surface design of textiles, printed and embroidered textile design, dyeing and finishing and the use of colour in textile design. Finally, part three focuses on the applications and advances in textile design, including chapters covering colour trend forecasting, sustainable textile design, fashion, interior and 2D to 3D design considerations and new developments in technical and future textiles.
With its distinguished editors and international team of contributors, Textile design is an essential reference for design professionals in the textile and fashion industries, as well as those who specialise in interior textiles and academics with a research interest in the area.A broad overview of textile design covering fundamental topics such as principles of fibres and fabrics, knitted fabric design, through to the dyeing, finishing and printing aspects of textile designExplores the design aspects of technical textiles and future textilesAn invaluable source of information on textile design and suitable for design professionals in the textile and fashion industries, as well as those in academia
Junk DNA can play vital and unanticipated roles in the control of gene expression, from fine-tuning individual genes to switching off entire chromosomes. Its function has forced scientists to revisit the very meaning of the word “gene” and has engendered a bitter battle over whether or not this genomic “nonsense” is the source of human biological complexity. Drawing on her experience with leading investigators in Europe and North America, Nessa Carey provides a clear and compelling introduction to junk DNA and its critical involvement in phenomena as diverse as genetic diseases, viral infections, sex determination in mammals, disease treatments, and evolution. We are only now unlocking the secrets of junk DNA, and Carey’s book is an indispensable resource for navigating the codes and controversies of this fast-growing and hotly disputed field.
Beginning with the various types of woven three-dimensional fabrics, the text then examines 3-D knitted, braided, and non-woven textiles, and the main applications and uses of three-dimensional textiles.Presents the most recent advances in the production of three-dimensional fibrous structures and how their use has resulted in the creation of novel fabrics and applicationsExamines many types of 3-D textiles, including knitted, braided, and non-woven textiles, and the main uses of three-dimensional textilesCovers their structures, properties, and uses within the textiles industry
This essential reference to SPS covers:
The preparation of syndiotactic polystyrene by half-metallocenes and other transition metal catalysts
The structure and fundamental properties, especially morphology and crystallization and solution behavior
The commercial process for SPS manufacturing
Properties, processing, and applications of syndiotactic polystyrenes
Polymers based on syndiotactic polystyrenes, for example, by functionalization and modification, and nanocomposites
Ideal for polymer chemists, physicists, plastics engineers, materials scientists, and all those dealing with plastics manufacturing and processing, this important resource provides the information one needs to compare, select, and integrate an appropriate materials solution for industrial use or research.
With its distinguished editor and international team of contributors, Specialist yarn, woven and fabric structures is essential reading for all textile researchers, technicians, engineers and technologies, and will also be suitable for academic purposes.Looks at developments that have occurred in the manufacturing of specialist yarn, weave and fabric structuresDiscusses different types of specialist yarn structures, such as hybrid, fancy and compound yarnsOffers insight into multicomponent fabric structures such as 3D nonwovens, flocked, knotted and jacquard woven fabrics
This book gives a comprehensive description of polymeric nanocomposites, both as bulk materials and as thin surface coatings, and their behavior and potential use in tribological applications. It provides the preparation techniques, friction and wear mechanisms, properties of polymeric nanocomposites, characterization, evaluation and selection methodology. It also provides various examples of application of polymeric nanocomposites.
* Provides a complete reference from the preparation to the selection of polymeric nanocomposites
* Explains the theory through examples of real-world applications
* More than 20 international tribology experts contribute to their area of expertise
This book is the first extended look at a new and multifaceted polymer processing technology that has already been discussed in numerous articles. Called Solid-State Shear Pulverization (S3P), this innovative process produces polymeric powders with unique physical properties not found in the output of conventional size-reduction methods.... This technology, which utilizes a pulverizer based on a modified co-rotating twin-screw extruder..., has profound implications for both the creation of new polymer blends and recycling of plastic and rubber waste.
Unlike [earlier processes] where polymers are melted prior to pulverization, ...pulverizing mixtures of polymers with the S3P process...does not involve melting. By contrast, S3P maintains polymers in the solid state and avoids the additional heat history that occurs during [other processes], which can be detrimental to the physical properties of pulverized materials. The research and development of the S3P technology...has grown significantly since 1990 from the development of a new plastics recycling process to a much broader polymer processing method that allows intimate mixing of polymers with very different viscosities, sold-state dispersion of additives, including pigments, and continuous production of powder with unique shapes and larger surface areas. Polymeric powders are of growing importance to plastics processors due to the increase use of plastics in various applications, such as rotational molding, powder coatings, and compounding, which require powder as the feedstock.
...[I]t has become clear that this process allows for in-situ compatibilization of dissimilar polymers by applying mechanical energy to cause chemical reactions. This aspect of S3P technology that we describe in this book should [be useful in] developing new polymer blends with the use of pre-made compatibilizing agents. In addition, it has been discovered that S3P efficiently mixes polymer blends with different component viscosities, resulting in the elimination of phase inversion. The S3P process directly produces blends with matrix and dispersed phase morphology like those obtained after phase inversion during a long melt-mixing process. This phenomenon is of practical importance because a long processing time is required by conventional melt-mixing to produce a stable blend morphology. S3P is also advantageous for producing thermoplastic or thermoset powder-coating compounds in a one-step process as opposed to a conventional multi-step operation that involves melt extrusion followed by batch grinding. The major capabilities of this new process can be summarized as follows:
o Continuous powder production from plastics or rubber feedstocks
o Blending of immiscible polymers
o Efficient mixing of polymers with unmatched viscosities
o Environmentally friendly recycling of multicolored, commingled plastics waste
o Sold-state dispersion of heat-sensitive additives
o Engineered plastic/rubber blends
Materials and processes well illustrated
The text is well illustrated with 60 photographs, micrographs, diagrams and others figures. Here is a small sampling of the captions of these figures. o Particle-size distribution for virgin LDPE powder made with PT-25 pulverizer o Optical photograph of virgin LDPE powder made with PT-25 pulverizer o Layout for a three-stage rubber pulverizer o Flow chart for powder coating production by conventional process and with new S3P technology o SEM image of pulverized virgin PP at 40X (first in series of SEM images of polymer powders) o Optical micrograph of melt-crystallized thin films of unpulverized virgin PP under polarized light o Log of viscosity vs. log shear rate for virgin HDPE after S3P processing o Gel permeation chromatograms (GPC) of polystyrene subjected to S3P processing
One of the several functions of Solid-State Shear Pulverization technology is recycling mixed plastic waste. This section of twenty full-color photographs and micrographs illustrates different processed materials, as well as the machinery and mixed waste used. Here is a small sampling of the photo and micrograph captions. o Resultant flake feedstock from granulation o S3P-made uniform powder from feedstock o Flake feedstock of post-consumer HDPE/PP blend (90/10 ratio) o Injection-molded test bar (with translucence) made from S3P powder without pelletization o Injection-molded test bar made from S3P powder without pelletization showing uniform color o Several test bars subjected to tensile testing showing exceptionally high elongation at break
Useful reference data in tables
More than 60 tables provide useful data in convenient form. Here is a small sampling of table captions. o Physical properties of virgin PP 8020 GU injection-molded from S3P-made powder (first in series of tables on physical properties of various plastics processed from S3P-made powder) o Sieve analysis of powder resulting from S3P of virgin LDPE 509.48 (one of series of tables on sieve analysis of polymer powders) o Melt-flow rate before and after S3P processing for virgin PS and two PP samples o Key physical properties of injection-molded post-consumer polyolefin blends pulverized by S3P process
Klementina Khait, M.S. Ch.E., Ph.D., is Research Associate Professor and Director of the Polymer Technology Center in the Department of Chemical Engineering, Northwestern University. Her industrial experience in polymer science and engineering includes work with Borg-Warner Chemicals and Quantum Chemical Corporation. She received her two advanced degrees, in chemical engineering and polymer chemistry, from the Technological Institute, St. Petersburg, Russia. Dr. Khait holds several patents and has published more than 50 papers in scientific and technical journals.
Stephen Carr, Ph.D., is Professor of Materials Science and Engineering and Chemical Engineering at Northwestern University. His industrial work includes work in polymer science and engineering with General Motors Corp. He received a doctorate in polymer science from Case Western Reserve University. He has been on the Northwestern University faculty since 1969.
Martin H. Mack is Vice President for R&D with the Berstorff Division of Krauss-Maffei Corporation. He holds an engineering degree from the University of Stuttgart. He has served for more than ten years on the Board of Directors of the Society of Plastics Engineers (SPE).
The data is supported by a full explanation of its interpretation, and an introduction to the engineering aspects of permeability in polymers.
The third edition includes expanded explanatory text which makes the book accessible to novices as well as experienced engineers, written by industry insider and author Larry McKeen (DuPont), and 20% new data and major new explanatory text sections to aid in the interpretation and application of the data.A unique collection of permeability data designed to enable quick like-for-like comparisons between different materialsThird edition includes 20% new data and expanded explanatory text, which makes the book accessible to novices as well as experienced engineersEssential reference for materials engineers, design engineers and applications engineers across sectors including packaging, automotive and medical devices
* The first reference work on named reactions to present colored schemes for easier understanding
* 250 frequently used named reactions are presented in a convenient two-page layout with numerous examples
* An opening list of abbreviations includes both structures and chemical names
* Contains more than 10,000 references grouped by seminal papers, reviews, modifications, and theoretical works
* Appendices list reactions in order of discovery, group by contemporary usage, and provide additional study tools
* Extensive index quickly locates information using words found in text and drawings
Polymers constitute the basis for the plastics, rubber, adhesives, fiber, and coating industries. The Fourth Edition of Introduction to Physical Polymer Science acknowledges the industrial success of polymers and the advancements made in the field while continuing to deliver the comprehensive introduction to polymer science that made its predecessors classic texts.
The Fourth Edition continues its coverage of amorphous and crystalline materials, glass transitions, rubber elasticity, and mechanical behavior, and offers updated discussions of polymer blends, composites, and interfaces, as well as such basics as molecular weight determination. Thus, interrelationships among molecular structure, morphology, and mechanical behavior of polymers continue to provide much of the value of the book.
Newly introduced topics include:
* Nanocomposites, including carbon nanotubes and exfoliated montmorillonite clays
* The structure, motions, and functions of DNA and proteins, as well as the interfaces of polymeric biomaterials with living organisms
* The glass transition behavior of nano-thin plastic films
In addition, new sections have been included on fire retardancy, friction and wear, optical tweezers, and more.
Introduction to Physical Polymer Science, Fourth Edition provides both an essential introduction to the field as well as an entry point to the latest research and developments in polymer science and engineering, making it an indispensable text for chemistry, chemical engineering, materials science and engineering, and polymer science and engineering students and professionals.
* Includes a solid introduction to the simulation of equilibrium processes and the simulation of complex kinetic processes.
* Provides examples of routines that are easily adapted to the processes investigated by the reader
* 'Model-based' analysis (linear and non-linear regression) and 'model-free' analysis are covered
The book discusses the state of the art in smart clothing technology and applications. The chapters address usability and human aspects relevant to the manufacture and sale of such products and detail the evolving and increasingly wide-ranging applications in fields such as information technology, healthcare, and entertainment. They also cover technology topics including interface, communication, energy supply, data management, processors, and actuators. Discussions of packaging and interconnection, shape memory alloy, and design and modeling of electronic textile applications round out the coverage.
With technology news blaring headlines such as Smart Clothing Coming Soon to Your Galaxy and Futuristic Fashions Will Fight Our Health Scares, can clothing that communicates with your washer and dryer be far behind? It is not enough to understand the technology, you must also grasp the human factor aspects. Identifying the challenges and potential benefits of smart clothing from both perspectives, this book provides integrated coverage that establishes the need for methods significantly different from traditional ones. Its up-to-date coverage allows you to visualize trends and provides a glimpse into the future.