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Books > Professional & Technical > Industrial chemistry & manufacturing technologies > Industrial chemistry > Plastics & polymers technology
Polymers are an example of "products-by-process," where the final
product properties are mostly determined during manufacture, in the
reactor. An understanding of processes occurring in the
polymerization reactor is therefore crucial to achieving efficient,
consistent, safe and environmentally friendly production of
polymeric materials.
This consolidated reference book addresses the various aspects of nano biomaterials used in ophthalmic drug delivery, including their characterization, interactions with ophthalmic system and applications in treatments of the ophthalmic diseases and disorders. In the last decade, a significant growth in polymer sciences, nanotechnology and biotechnology has resulted in the development of new nano- and bioengineered nano-bio-materials. These are extensively explored as drug delivery carriers as well as for implantable devices and scaffolds. At the interface between nanomaterials and biological systems, the organic and synthetic worlds merge into a new science concerned with the safe use of nanotechnology and nano material design for biological applications. For this field to evolve, there is a need to understand the dynamic forces and molecular components that shape these interactions. While it is impossible to describe with certainty all the bio physicochemical interactions at play at the interface, we are at a point where the pockets of assembled knowledge are providing a conceptual framework to guide this exploration, and review the impact on future product development. The book is intended as a valuable resource for academics and pharmaceutical scientists working in the field of polymers, polymers materials for drug delivery, drug delivery systems and ophthalmic drug delivery systems, in addition to medical and health care professionals in these areas.
This book focuses on starch polymers including starch genetics,
biotechnological and chemical modification, nanostructures,
processing, characterization, properties and applications. This
books topic is in a cutting edge and emerging technology area of
biomaterials, nanomaterials and renewable materials, and will
involve international experts in diverse fields from genetic
engineering to applications.
Service Life Prediction of Polymeric Materials: Global Perspectives combines developed content derived from topics discussed in the Fourth International Symposium on Service Life Prediction (Key Largo, Florida, December 2006). This critical examination of the existing and alternative methodologies used to assess the service life of polymeric materials presents readers with the advances in accelerated and field exposure testing protocols. Written by established experts in the service life community, this volume introduces advanced methods, including high throughput and combinatorial analyses, models data collection and storage formats. Researchers and engineers involved with materials and polymer science, coatings technologists and automotive materials will find Service Life Prediction of Polymeric Materials: Global Perspectives a useful tool.
The Physics of Polymers presents the elements of this important segment of material science, focusing on concepts above experimental techniques and theoretical methods. Written for graduate students of physics, material science and chemical engineering and for researchers working with polymers in academia and industry, the book introduces and discusses the basic phenomena which lead to the peculiar physical properties of polymeric systems. The revised and expanded Third Edition includes a new chapter dealing with conjugated polymers, explaining the physical basis of the characteristic electro-optic response, and the spectacular electrical conduction properties of conjugated polymers created by doping.
As semiconductor manufacturers implement copper conductors in advanced interconnect schemes, research and development efforts shift toward the selection of an insulator that can take maximum advantage of the lower power and faster signal propagation allowed by copper interconnects. One of the main challenges to integrating a low-dielectric constant (low-kappa) insulator as a replacement for silicon dioxide is the behavior of such materials during the chemical-mechanical planarization (CMP) process used in Damascene patterning. Low-kappa dielectrics tend to be softer and less chemically reactive than silicon dioxide, providing significant challenges to successful removal and planarization of such materials. The focus of this book is to merge the complex CMP models and mechanisms that have evolved in the past decade with recent experimental results with copper and low-kappa CMP to develop a comprehensive mechanism for low- and high-removal-rate processes. The result is a more in-depth look into the fundamental reaction kinetics that alter, selectively consume, and ultimately planarize a multi-material structure during Damascene patterning.
The emphasis in degradable polymers has changed since the first edition of this book. Biomedical and agricultural applications remain important topics of scientific and commercial interest in the second edition. However, an increased emphasis on composting as a means of recovering value from wastes has led to a new impetus to understand how plastics degrade in the environment and the implication of this for international standards. Polymers based on renewable resources are also a major topic in this edition but the debate continues about their long-term sustainability and ecological advantages over degradable man-made polymers. Degradable Polymers will be of interest not only to academic and industrial scientists working on packaging, agricultural and medical applications of plastics but also to students of environmental science and legislators concerned with the effects of man-made materials in the environment.
This book covers fundamental principles and numerical methods relevant to the modeling of the injection molding process. As injection molding processing is related to rheology, mechanical and chemical engineering, polymer science and computational methods, and is a rapidly growing field, the book provides a multidisciplinary and comprehensive introduction to the subjects required for an understanding of the complex process. It addresses the up-to-date status of fundamental understanding and simulation technologies, without losing sight of still useful classical approaches. The main chapters of the book are devoted to the currently active fields of flow-induced crystallization and orientation evolution of fiber suspensions, respectively, followed by detailed discussion of their effects on mechanical property, shrinkage and warpage of injection-molded products. The level of the proposed book will be suitable for interested scientists, R&D engineers, application engineers, and graduate students in engineering.
Photoreactive thin films have been investigated extensively due to the advances in photonics, and the coupling between photochemistry and nonlinear optics has developed into a new discipline since the 1990s. Light can manipulate the orientation of optically sensitive chromophores containing polymeric thin films, and this phenomena has important applications to the field of opto-electronics and photonics especially in such areas as liquid crystals and optical storage of information.;Scientists from different communities have been working in this area representing such fields as chemistry, chemical engineering, polymer science and optics. The purpose of this books is to provide a comprehensive reference covering the basic fundamentals of the interdisciplinary research as well as the applications in photonics.
Chemical Vapor Deposition Polymerization - The Growth and
Properties of Parylene Thin Films is intended to be valuable to
both users and researchers of parylene thin films. It should be
particularly useful for those setting up and characterizing their
first research deposition system. It provides a good picture of the
deposition process and equipment, as well as information on
system-to-system variations that is important to consider when
designing a deposition system or making modifications to an
existing one. Also included are methods to characterizae a
deposition system's pumping properties as well as monitor the
deposition process via mass spectrometry. There are many references
that will lead the reader to further information on the topic being
discussed.
This book contains analysis of reasons that cause products to fail. General methods of product failure evaluation give powerful tools in product improvement. Such methods, discussed in the book, include practical risk analysis, failure mode and effect analysis, preliminary hazard analysis, progressive failure analysis, fault tree analysis, mean time between failures, Wohler curves, finite element analysis, cohesive zone model, crack propagation kinetics, time-temperature collectives, quantitative characterization of fatigue damage, and fracture maps. Methods of failure analysis are critical to for material improvement and they are broadly discussed in this book. Fractography of plastics is relatively a new field which has many commonalities with fractography of metals. Here various aspects of fractography of plastics and metals are compared and contrasted. Fractography application in studies of static and cycling loading of ABS is also discussed. Other methods include SEM, SAXS, FTIR, DSC, DMA, GC/MS, optical microscopy, fatigue behavior, multi-axial stress, residual stress analysis, punch resistance, creep-rupture, impact, oxidative induction time, craze testing, defect analysis, fracture toughness, activation energy of degradation. Many references are given in this book to real products and real cases of their failure. The products discussed include office equipment, automotive compressed fuel gas system, pipes, polymer blends, blow molded parts, layered, cross-ply and continuous fiber composites, printed circuits, electronic packages, hip implants, blown and multi-layered films, construction materials, component housings, brake cups, composite pressure vessels, swampcoolers, electrical cables, plumbing fittings, medical devices, medical packaging, strapping tapes, balloons, marine coatings, thermal switches, pressure relief membranes, pharmaceutical products, window profiles, and bone cements.
Fluid Effects in Polymers and Polymeric Composites, written by the late Dr. Y. Jack Weitsman, addresses the wide range of parameters that affect the interaction of fluids with polymers and polymeric composites. The book aims at broadening the scope of available data, mostly limited up to this time to weight-gain recordings of fluid ingress into polymers and composites, to the practical circumstances of fluctuating exposure. Various forms of experimental data are given, in conjunction with theoretical models derived from basic scientific principles, and correlated with severity of exposure conditions and interpreted by means of rationally based theoretical models. The practical implications of the effects of fluids are discussed. The issue of fluid effects on polymers and polymeric composites is of concern to engineers and scientists active in aerospace and naval structures, as an increasing portion of these structures are made of polymeric composites and employ polymeric adhesives as a joining device. While the book is intended for this audience, it will also interest researchers and graduate students interested in the mechanics and materials aspects of this matter.
Proceedings of The 7th World Conference on Biodegradable Polymers
& Plastics organized by the European Degradable Polymer Society
in conjunction with the Bioenvironmental Polymer Society and the
Biodegradale Plastics Society, under the auspices of ICS-UNIDO
(Italy) and INSTM Consortium (Italy) and under the patronage of
IUPAC - International Union of Pure and Applied Chemistry (USA) and
Ministero dell'Ambiente e della Tutela del Territorio (Italy), held
in Tirrenia (Pisa), Italy, on June 4-8, 2002. -Environmentally Degradable Polymeric Materials (EDPs);
The 75th Anniversary Celebration of the "Division of Polymeric Materials: Science and Engineering" of the "American Chemical Society," in 1999 sparked this third edition of "Applied Polymer Science" with emphasis on the developments of the last few years and a serious look at the challenges and expectations of the 21st Century.
This doctoral thesis explains the synthesis and characterization of novel, smart hybrid nanomaterials. Bastian Ebeling combines in this work synthetic polymers with inorganic nanoparticles from silica or gold. The first chapters offer a comprehensive introduction to basics of polymer science and the applied methodologies. In following chapters, the author describes in detail how he systematically tailored the polymers using reversible addition-fragmentation chain transfer polymerization (RAFT) for combination with inorganic nanoparticles. This work also unravels mechanistic, thermodynamic, and structural aspects of all building blocks and reaction steps. The method described here is simple to perform and opens up pathways to new sets of nanohybrid materials with potential applications as sensors, in energy conversion, or catalysis. Readers will find a unique picture of the step-by step formation of new complex nanomaterials. It offers polymer scientists a systematic guide to the formation and synthesis of a new class of responsive nanomaterials.
Fullerene Polymers and Fullerene Polymer Composites is an in-depth experimental and theoretical account of polymers and composites whose unusual properties, such as, photophysical phenomena, electrical transport, phase transitions and magnetic properties, stem from the incorporation of C60 in the material. Each chapter is written by an internationally renowned expert who has published extensively in this sub-field of fullerene materials. Introductory chapters on the fundamental properties of fullerenes (C60, C70) and photophysical phenomena in fullerenes and polymers are also included.
This volume explores the latest developments in the area of polymer electrolyte membranes (PEMs) used for high-temperature fuel cells. Featuring contributions from an international array of researchers, it presents a unified viewpoint on the operating principles of fuel cells, various methodologies used for the fabrication of PEMs, and issues related to the chemical and mechanical stabilities of the membranes. Special attention is given to the fabrication of electrospun nanocomposite membranes. The editors have consciously placed an emphasis on developments in the area of fast-growing and promising PEM materials obtained via hygroscopic inorganic fillers, solid proton conductors, heterocyclic solvents, ionic liquids, anhydrous H3PO4 blends, and heteropolyacids. This book is intended for fuel cell researchers and students who are interested in a deeper understanding of the organic-inorganic membranes used in fuel cells, membrane fabrication methodologies, properties and clean energy applications.
An analysis of polymer and composite rheology. This second edition covers flow properties of thermoplastic and thermoset polymers, and general principles and applications of all phases of polymer rheology, with new chapters on the rheology of particulate and fibre composites. It also includes new and expanded detail on polymer blends and emulsions, foams, reacting systems, and flow through porous media as well as composite processing operations.
A huge variety of biopolymers - such as polysaccharides, polyesters, and polyamides - are naturally produced by microorganisms. These range from viscous solutions to plastics. Their physical properties are dependent on the composition and molecular weight of the polymer. The genetic manipulation of microorganisms opens up an enormous potential for the biotechnological production of biopolymers with tailored properties suitable for high-value medical application such as tissue engineering and drug delivery. Written by expert, internationally renowned scientists, this comprehensive volume describes in detail the use of microorganisms for the production of the most important biopolymers and polymer precursors. The contributors describe in depth the biosynthetic pathways, physical properties, and industrial production processes; and they discuss in detail the genetic and metabolic engineering of microorganisms for biopolymer production. Also highlighted are the applications and potential applications of the biopolymers and microbial biotechnology. Topics include the biochemistry and genetics of biosynthesis of xanthan, alginate, cellulose, cyanophycin, poly(gamma-glutamic acid), levan, hyaluronic acid, organic acids, oligosaccharides and polysaccharides, and polyhydroxyalkanoates. This book is recommended book for all biotechnology and microbiology laboratories.
This book examines current issues of fiber reinforced polymer (FRP) composites in civil infrastructure. The contents of this book are divided into two parts. The first part engages topics related to durability and service life of FRP composites and how they contribute to sustainability. The second part highlights implementation and applications of the FRP composites with an emphasis on bridge structures. An introductory chapter provides an overview of FRP composites and its role in a sustainable built environment highlighting the issues of durability and service life followed by a current review of sustainability in infrastructure design. "
Cyclic Polymers (Second Edition) reviews the many recent advances in this rapidly expanding subject since the publication of the first edition in 1986. The preparation, characterisation, properties and applications of a wide range of organic and inorganic cyclic oligomers and polymers are described in detail, together with many examples of catenanes and rotaxanes. The importance of large cyclics in biological chemistry and molecular biology is emphasised by a wide coverage of circular DNA, cyclic peptides and cyclic oligosaccharides and polysaccharides. Experimental techniques and theoretical aspects of cyclic polymers are included, as well as examples of their uses such as ring opening polymerisation reactions to give commercially important materials. This book covers a wide range of topics which should be of interest to many scientific research workers (for example, in polymer science, chemistry and molecular biology), as well as providing a reference text for undergraduate and graduate students.
Second in the Metallocene series from PDL, this book focuses on the commercial use and process improvements of resins produced with metallocene, single site, and other modern catalytic methods. Research to broaden the scope of applications and shorten production cycles is presented. New and improved polymer blends resulting from the use of new catalysts and improved polymer compatibility are explored as well as new applications becoming possible due to improved and balanced properties. Current trends and the latest research from the international scientific and industrial community are presented in this volume. Chapters cover use in extrusion, film manufacture, injection molding, foam production, fiber spinning, composites and new applications. Precise testing methods, material characterization, polymer morphology and crystallization are the focus of another section of the book.
The broad collection of techniques gathered in this book help illustrate material/process/property relationships for a wide selection of materials and processes in the plastics industry. With the recent increases in computing power and scope, as well as advances in software engineering, imaging has already become a universal tool. Image processing and image analysis have become common expressions are widely recognized within the scientific community. The imaging techniques employed range from visible optical methods to scanning and transmission electron microscopy, x-ray, thermal wave infrared and atomic force microscopy. Image analysis is used to monitor/ characterize a variety of processes. Processes included within this book are: extrusion, injection molding, foam production, film manufacture, compression molding, blow molding, vulcanization, melt spinning, reactive blending, welding, conveying, composite manufacture, compounding, and thermosetting. Imaging techniques are also employed to characterize/quantify a number of important material properties. These include: fiber orientation distribution, homogeneity of mixing, the rate of spherulites growth, polymer crystallization rate, melt flow index, pore size and shape in foam, cell density in foam, void content, particle analysis in polymer blends, morphology, interparticle distance, fiber diameter, fatigue crack, crazing, scratching, surface roughness, fiber-length distribution, nucleation, oil penetration, peel adhesion, chemical resistance, droplet-fiber transition, electrical conductivity, dispersion and impurity content. |
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