Cold hibernated elastic memory (CHEM) is an innovative, smart material technology that uses shape memory polymers in open cellular structures. This book extensively describes CHEM self-deployable structures, provides basic property data and characteristics, discusses advantages, and identifies numerous space, commercial, and medical applications. Some of these applications have been experimentally and analytically investigated with inspiring results and are revealed here. CHEM technology has a potential to provide groundbreaking self-deployable space structures. Some cutting-edge space CHEM concepts described in this book represent the introduction of a new generation of space deployable structures. CHEM materials have unique characteristics that enable the manufacture of self-deployable stents and other medical devices not possible currently. One of the medical applications, the CHEM endovascular treatment of aneurysm, is being experimentally explored with promising results that would save lives. This book provides a long list of interesting potential commercial CHEM applications that could simplify and make life easier at low cost. One of these products, the self-reconfiguring armchair, is already being set up for mass production. This book will be of interest to all engineering researchers, scientists, engineers, students, designers, and technologists across their relevant fields of interest. The exceptional characteristics of CHEM technology are presently enabling technologists to develop many applications ranging from outer space to inside the human body. As a result, CHEM structures are in the process of reshaping our thinking, approaches, and design methods in many ways that conventional materials and approaches do not allow.

This books studies syntax of NPIs and their interaction with sentential negatives in Hindi. It outlines the clause structure of Hindi and locates the syntactic position of sentential negatives as well as constituent negatives within the structure. It is argued that sentential negative in Hindi negation marker heads its own maximal projection, NegP, which is immediately dominated by TP. In addition to locating the position of negation markers in the clause structure, it outlines the distribution of negative polarity items (NPIs) in Hindi and the structural constraints on their licensing by sentential negative. The book argues that an NPI in Hindi is licensed overtly in the course of derivation by a c-commanding negative marker. The bulk of the evidence presented in this book argues against previous theoretical accounts that claim that NPI licensing involves covert syntactic operations such as LF movement or reconstruction. With respect to the classification of NPIs, this book also shows the existence of two different types of NPIs in Hindi; namely, strong NPIs and weak NPIs. Strong NPIs require a clause mate c-commanding negative licensor, whereas weak NPIs are quantifiers and are similar to free choice 'any' in English that are interpreted as NPIs in the presence of a c-commanding negative licensor.

First Published in 2006. This volume introduces and provides a semantic analysis of Discourse Adjectives, a natural class of adjectives that the author argues includes apparent, clear, evident, and obvious among its prototypical members. With a main claim that Discourse Adjectives do not provide information about the facts of the world. Rather, they are used by interlocutors to negotiate the status of propositions in a discourse.

International law is often manipulated in the debate about humanitarian intervention. The Liberian case provides an opportunity to challenge UN and the Economic Community of West African States' (ECOWAS') new approach. ECOWAS and the UN's justifications for moving away from the current norms are flawed. No enlightened person would disagree with the values of peace, democracy, human rights, and economic development. But should these goals be pursued within the current framework or outside it? Deme is an international lawyer educated at the University of Bordeaux, France. He received his Ph.D at Boston University. Deme teaches at the university of Rhodes Island and is a research fellow for the International Consortium for Law and Development at Boston University. He currently is an independent consultant for various international agencies in Washington DC and New York.

This book provides a comprehensive and up-to-date discussion of breakthroughs on additive manufacturing for plastic material recycling to boost a circular economy. It offers new ideas of combining/hybridizing processing methods that work as a source of information for manufacturers in making new and strategic product development plans. Additive Manufacturing for Plastic Recycling: Efforts in Boosting a Circular Economy provides a critical, comprehensive, methodological, and strong state-of-the-art work on the processing of thermoplastic and thermosetting along with new directions and applications. It describes the common and hybrid approaches of recycling processes and includes theoretical and practical ideas of combining/hybridizing processing methods with the use of fused deposition modelling, which is one of the low-cost additive manufacturing techniques. The book also discusses mechanical twin-screw extrusion followed by case studies for developing hybrid composite structures for biomedical and structural applications. Recent innovations in melt processing for recycling and the fundaments, process parameters investigations, and applications for new product development are also presented. This book is a first-hand reference source of information for academic scholars and commercial manufacturers for making strategic development plans for new product development.

The improvement of strength and durability in polymers has implications relevant to industrial, medical, and household applications. Enhanced by the improved knowledge of the interactions between complex hierarchical structures and functional requirements, Mechanical Properties of Polymers Based on Nanostructure and Morphology focuses on new polymer materials that possess a combination of improved mechanical and other physical properties. This book specifies techniques used in structural and morphological characterization, discusses crazing and molecular variables of fracture behavior, and clarifies various modes of deformation mechanisms and orientation processes for semicrystalline polymers, block copolymers, and composites. The volume examines microindentation hardness studies and mechanisms of toughness enhancement for particle modified, amorphous and semicrystalline polymers and blends using model analysis. Experts in the field present innovations that illustrate new aspects of manufacturing, structure development, and properties of practical relevance in nanoparticle-filled thermoplastic polymers and the applications of carbon nanotube and nanofiber reinforced polymer systems. Other topics discussed in the book include alternative methods of polymer modification based on micro- and nanolayered polymers and hot compaction of oriented fibers and tapes. This book reflects the continuing research of mechanisms contributing to the structure-function relationship of nanostructured polymers and nanocomposites. Mechanical Properties of Polymers Based on Nanostructure and Morphology presents effective ways to combine improved mechanical and physical properties in polymers and form new, performance-enhanced composite materials.

The safe disposal and reuse of industrial and consumer rubber waste continues to pose a serious threat to environmental safety and health, despite the fact that the technology now exits for its effective recycling and reuse. Mountains of used tires confirm the belief that chemically crosslinked rubber is one of the most difficult materials to recycle. That coupled with a long history of failed attempts to create quality products from crumb rubber has resulted in such a resistance to new ideas concerning rubber recycling that very little literature on the subject has even seen the light of day. Rubber Recycling is one of those rare books that has the potential to directly impact our ecological well-being. The editors of this important volume have filled a void in technological responsibility by bringing together a group of international experts who, using substantial research evidence, prove that the utilization of recycled rubber is not just desirable, but is also quite feasible and profitable. This text provides a thorough overview of the fundamentals of rubber and the challenges of recycling. However, the heart of the book lies in its detailed explanation of the various processes currently available to breakdown, recycle, and reuse crosslinked rubber. These include -- -Unconventional polymer recycling -High-pressure, high-temperature sintering -Ultrasonic and non ultrasonic devulcanization -The use of tire particles as replacement aggregates for low-strength concrete material -The utilization of powdered rubber waste in the production of rubber compounds -The future potential for recycling waste rubber by blending it with waste plastics Never forgetting that these technologies aremeaningless without industry participation, the book concludes with a highly practical discussion on how present market demands can be met with recycled rubber.

Understanding Injection Molds opens up the entire subject of injection mold technology, including numerous special procedures, in a well-grounded and practical way. It is specifically intended for beginners, young professionals, business owners, and engineering students. The chapters are clearly structured and easy to understand. The book is designed so that it provides a complete basic knowledge of injection molds in chronological order as well as day-to-day guidance and advice. The numerous colour figures facilitate a rapid understanding of the content, which is especially helpful to the beginner who wants to learn about injection molds quickly. In the forefront of the description are thermoplastic molds. Divergent processes for thermoset or elastomer molds are explained at the end of each chapter. This book captures the current state of the art, and is written by authors who are specialists in the field. The second edition has been updated and improved throughout.

Scientists and researchers are looking for new smart materials to replace old or conventional materials for better performance and for new applications. The use of polymeric materials and nanomaterials is increasing due to their wide-spectrum tunability and many properties. It is now easier to formulate materials for special purposes using these materials than using conventional materials and methods. Many commercial products made from polymeric materials and nanomaterials are now in use and on the market. This book presents a diverse selection of cutting-edge research on the development of polymeric materials and nanomaterials for new and different applications. These include electrical applications, biomedical applications, sensing applications, coating applications, and others. A few chapters dedicated to materials for construction applications are also included. Discussions include the properties, behavior, preparation, processing, and characterization of various polymeric materials, nanomaterials, and their composites. Some of the chapter authors present theoretical studies of these systems, which can help readers to develop a better understanding in this area.

Discussing a comprehensive range of topics, Advanced Pharmaceutics: Physicochemical Principles reviews all aspects of physical pharmacy. The book explains the basic, mechanistic, and quantitative interpretation skills needed to solve physical pharmacy related problems. The author supplies a strong fundamental background and extensively covers thermodynamics, ionic equilibria, solutions and distribution, surface chemistry and colloids, kinetics, diffusion, and polymer science. He outlines the latest research on diffusion through a membrane and the use of polymers in dosage forms. Packed with formulae and models, the book demonstrates the development of each and then describes the use of those models for a variety of formulation situations. The author's detailed explanation of the evolution of the formulae provides a clear understanding of when and how they are used. This bottom-up approach delineates the evolution of the formulae and gives a clear understanding of when and how they should be used. The book provides an in-depth review and analysis of dosage form design criteria that you can rapidly implement in your day-to-day work.

Polymer Brushes: Substrates, Technologies, and Properties covers various aspects of polymer brush technology, including synthesis, properties, performance, and applications. It presents both experimental details and theoretical insights to enable a better understanding of the brush system. After an overview of polymer brush systems, the book discusses methods for grafting organic brushes from the surface of clay platelets and for the covalent grafting of PNIPAm brushes. It then describes ferrocene polymer brushes, nonfouling brushes on poly(ethylene terephthalate) film surfaces, brushes formed on the inner surface of cylindrical pores, and the "zipper brush" approach. The authors examine the use of scanning electrochemical microscopy for analyzing brushes and compare surface-controlled atom transfer radical polymerization and surface-controlled single-electron transfer living radical polymerization. They also explore the application of polymer brushes in the chromatographic separations of viruses and proteins and the suppression of proteins and cell adhesions. The text concludes with a look at how polymer brushes are synthesized by surface-initiated iniferter-mediated polymerization. This book provides a one-stop reference on the various substrates and technologies used to synthesize polymer brushes. The hands-on information in the text will help readers choose the proper synthesis methods and materials for their system.

This book emphasizes the scientific origin of deformation and damage of FRP composites under various environmental effects and analyses present understanding on degradation mechanisms, role of interfaces and addition of nanofillers Discusses micro-characterization of composites and interfaces, also includes micro-mechanisms and microscopic evidences to establish the structure-property correlation Elucidates advantages and limitations of FRP composites in supercritical applications

Green Sustainable Process for Chemical and Environmental Engineering and Science: Carbon Dioxide Capture and Utilization explores advanced technologies based on CO2 utilization. The book provides an overview on the conversion and utilization of CO2, extraction techniques, heterogeneous catalysis, green solvent, industrial approaches, and commodity products through energy-intensive processes. In addition, it highlights lifecycle assessment and biological and engineering strategies for CO2 utilization. Each chapter presents challenges in the processes and future perspectives for the application of CO2 conversion and utilization.

The purpose of this book is to present in a monographic and systematised form a review of all the literature devoted to polyurethane-based polymeric sorbents in separation chemistry. The primary types of sorbents dealt with are polyurethane foams and open-pore polyurethanes. The structure of the monograph follows this dichotomy. A book of this nature should stimulate thinking and incite its reader to consult the original literature. It will, however, not make such a consultation superfluous. A fair amount of the results described in this monograph constitute the main activity of investigation which took place in the authors laboratories during the past decade.

Discovered in the twentieth century, carbon nanotubes (CNT) were an integral part of science and industry by the beginning of the twenty first century, revolutionizing chemistry, physics, and materials science. More recent advances in carbon nanotube production methods have resulted in a tremendous push to incorporate CNTs into polymer matrices. Although many advances have been made, two major obstacles continue unresolved: the enhancement of interfacial adhesion between CNTs and polymer matrix, and the improvement of dispersion of CNTs in polymers. Both substantial original contributors to the field, the authors present Carbon Nanotubes for Polymer Reinforcement, the first monograph on various conventional and innovative techniques to disperse and functionalize carbon nanotubes for polymer reinforcement, elegantly explaining the basic sciences and technologies involved in those processes. Topics covered include: Use of CNTs in fabricating novel polymer composites Principles and mechanisms behind CNT dispersion and functionalization Methods for the functionalization and dispersion of CNTs in polymer matrices Effects of CNTs on functional and mechanical properties of polymer composites Optimization of CNT/polymer nanocomposite fabrication Carbon Nanotubes for Polymer Reinforcement is a comprehensive treatment and critical review of the new class of polymer nanocomposites, and points to areas of future developments. Composites engineers, scientists, researchers, and students will find the basic knowledge and technical results contained herein informative and useful references for their work, whether for advanced research or for design and manufacture of such composites.

Omitting complicated chemistry concepts, Polyurethane Casting Primer presents practical details on the casting of polyurethane products to assist readers in their daily work. It covers fundamental methods, explores hands-on design and production topics, and keeps theory to a minimum. The book fully explains casting and allied processes. Starting from a "bucket and paddle mix" open pour, postcuring machining, bonding, and painting, it discusses how to produce quality products continuously. The author describes the necessary precautions for maintaining the health and safety of workers. He covers the properties of polyurethane systems, the tests and results of polyurethanes commonly used in compression, and the correct grade and processing of polyurethanes for meeting customer requirements. He also reveals how to fix issues such as molding problems and premature end of life. The versatility of polyurethane enables a wide range of applications, from simple, noncritical parts to vital engineering products. This book guides manufacturers in designing and producing polyurethane products. Batch calculations are available for download at www.crcpress.com

Functionalized Polysulfones: Synthesis, Characterization, and Applications focuses on polysulfones and their derivatives, which are widely used as functional materials in the biochemical, industrial, and medical fields due to their structural and physical characteristics, such as good optical properties, high thermal and chemical stability, mechanical strength, resistance to extreme pH values, and low creep. Because of their antimicrobial actions, solubility characteristics, water permeability, and separation, the functional groups, which modify the hydrophilicity of polysulfones, are of particular interest for biomedical applications. In addition, the functional groups are an intrinsic requirement for affinity, ion exchange, and other special membranes. In this book, the bioapplications of polysulfones are presented in two categories: blood-contacting devices (e.g., membranes for hemodialysis, hemodiafiltration, and hemofiltration) and cell- or tissue-contacting devices (e.g., bioreactors made by hollow-fiber membrane and nerve generation through polysulfone semipermeable hollow membrane). Surface wettability and hydrophilicity trends, as well as the morphological characteristics of modified polysulfones, are analyzed for semipermeable membrane purposes. Select chapters provide an introduction to chelating units on the modified polysulfone structure to obtain potential applications, such as surface coatings on metals and glasses, adhesives, high-temperature lubricants, electrical insulators, semiconductors, and the reduction of heavy-metal pollution in ecosystems. Featuring recent scientific information, Functionalized Polysulfones: Synthesis, Characterization, and Applications advances the basic knowledge of students and researchers working in the field of polymeric materials, including physicists, chemists, engineers, bioengineers, and biologists.

This book examines the whole range of modern packaging options. It covers edible packaging based on carbohydrates, proteins, antioxidative and antimicrobial packaging, and the chemistry of food and food packaging, such as plasticization and polymer morphology. Issues related to shelf life and biodegradability are also discussed, in addition to newly discovered processing and preservation techniques, most notably modified atmosphere packaging (MAP) and active packaging (AP).

Cellulose-Based Graft Copolymers: Structure and Chemistry discusses the synthesis, characterization, and properties of multifunctional cellulose-based graft copolymers. Presenting the contributions of accomplished experts in the field of natural cellulosic polymers, this authoritative text: Offers an overview of cutting-edge technical accomplishments in natural cellulose-based graft polymers Addresses a separate biomaterial in each chapter, exploring composition as well as graft copolymerization chemistry Covers fundamentals and applications including toxic ion removal, biomedical engineering, biofuels, micro/nano composites, papermaking, building materials, and defense Cellulose-Based Graft Copolymers: Structure and Chemistry tackles several critical issues and provides suggestions for future work, supplying deeper insight into the state of the art of advanced cellulose-based graft copolymers.

"Presents the latest research on the flow and structure of complex particulate sustemsions, the adsorption behavior of polymers, and the consolidation behavior and mechanical properties of films. Highlights recent advances in polymer functionality, conformation, and chemistry for biological, biomedical, and industrial applications."

The primary objective of this book is to bridge this gap by presenting the concepts in composites in an integrated and balanced manner and expose the reader to the total gamut of activities involved in composite product development. It includes the complete know-how for development of a composite product including its design & analysis, manufacture and characterization, and testing.The book has fourteen chapters that are divided into two parts with part one describing mechanics, analytical methods in composites and basic finite element procedure, and the second part illustratesr materials, manufacturing methods, destructive and non-destructive tests and design.

This work focuses on the factors critical to successful injection moulding, including knowledge of plastic materials and how they melt, the importance of mould design, the role of the screw, and the correct use of the controls of an injection moulding machine. It seeks to provide operating personnel with a clear understanding of the basics of injection moulding, resulting in more efficient processing, reduced cycle times, and better part quality with fewer rejects.

A concise introduction to the physics of charged macromolecules, from the basics of electrostatics to cutting-edge modern research developments. This accessible book provides a clear and intuitive view of concepts and theory, and features appendices detailing mathematical methodology. Supported by results from real-world experiments and simulations, this book equips the reader with a vital foundation for performing experimental research. Topics include living matter and synthetic materials including polyelectrolytes, polyzwitterions, polyampholytes, proteins, intrinsically disordered proteins, and DNA/RNA. Serving as a gateway to the growing field of charged macromolecules and their applications, this concept-driven book is a perfect guide for students beginning their studies in charged macromolecules, providing new opportunities for research and discovery.

Plastics and rubber materials, or polymers, are increasingly the first choice of engineers when reliable, cost-effective performance and safety are essential. The volume of polymers used in the Western economy now exceeds that of metals, which requires today's engineering students to have a thorough grounding in the properties and applications of polymeric materials. The first chapters of Engineering with Polymers explain what polymers are, how they behave, and how articles are made from them. The authors then show how the standard engineering techniques of stress analysis, structures, fluid mechanics, heat transfer and design can be adopted or adapted to cover plastics and rubber materials. The book ends with chapters detailing interactions between processing and properties, and a description of a variety of approaches to designing plastics products, from practical advice to the use or further development of theoretical principles, backed up by examples and case studies. The book is aimed at mechanical engineering students and design engineers in industry and also at materials' and chemical engineers.

Electrochemical Polymer Electrolyte Membranes covers PEMs from fundamentals to applications, describing their structure, properties, characterization, synthesis, and use in electrochemical energy storage and solar energy conversion technologies. Featuring chapters authored by leading experts from academia and industry, this authoritative text: Discusses cutting-edge methodologies in PEM material selection and fabrication Points out important challenges in developing PEMs and recommends mitigation strategies to improve PEM performance Analyzes the current integration of PEMs with primary power devices and explores research trends for the next generation of PEMs Electrochemical Polymer Electrolyte Membranes provides a systematic overview of the state of the art of PEM development, making the book a beneficial resource for researchers, students, industrial professionals, and manufacturers.