Graft Copolymers
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Polysaccharide Based Graft Copolymers
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Author : Susheel Kalia
language : en
Publisher: Springer Science & Business Media
Release Date : 2013-05-23
Polysaccharide Based Graft Copolymers written by Susheel Kalia and has been published by Springer Science & Business Media this book supported file pdf, txt, epub, kindle and other format this book has been release on 2013-05-23 with Technology & Engineering categories.
Renowned experts give all essential aspects of the techniques and applications of graft copolymers based on polysaccharides. Polysaccharides are the most abundant natural organic materials and polysaccharide based graft copolymers are of great importance and widely used in various fields. Natural polysaccharides have recently received more attention due to their advantages over synthetic polymers by being non-toxic, biodegradable and available at low cost. Modification of polysaccharides through graft copolymerization improves the properties of polysaccharides. Grafting is known to improve the characteristic properties of the backbones. Such properties include water repellency, thermal stability, flame resistance, dye-ability and resistance towards acid-base attack and abrasion. Polysaccharides and their graft copolymers find extensive applications in diversified fields. Applications of modified polysaccharides include drug delivery devices, controlled release of fungicides, selective water absorption from oil-water emulsions, purification of water etc.
Graft Copolymers
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Author : H. A. J. Battaerd
language : en
Publisher:
Release Date : 1967
Graft Copolymers written by H. A. J. Battaerd and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1967 with Graft copolymers categories.
Block And Graft Copolymers
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Author : R. J. Ceresa
language : en
Publisher:
Release Date : 1962
Block And Graft Copolymers written by R. J. Ceresa and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1962 with Block copolymers categories.
Cellulose Based Graft Copolymers
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Author : Vijay Kumar Thakur
language : en
Publisher: CRC Press
Release Date : 2015-04-23
Cellulose Based Graft Copolymers written by Vijay Kumar Thakur and has been published by CRC Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2015-04-23 with Medical categories.
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 accomplishmen
Block And Graft Copolymerization
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Author : R. J. Ceresa
language : en
Publisher:
Release Date : 1976
Block And Graft Copolymerization written by R. J. Ceresa and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1976 with Science categories.
Blends And Graft Copolymers Of Cellulosics
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Author : Yoshiyuki Nishio
language : en
Publisher: Springer
Release Date : 2017-04-07
Blends And Graft Copolymers Of Cellulosics written by Yoshiyuki Nishio and has been published by Springer this book supported file pdf, txt, epub, kindle and other format this book has been release on 2017-04-07 with Technology & Engineering categories.
This book reveals how polymer blending and grafting now offer a growing range of new applications for advanced films and fibers. Further, it details how the processing and original physical properties of cellulosics can be improved, and demonstrates how new, cellulose-core polymeric materials offer a wide range of synergistic functionalities. Lastly, it summarizes basic characterization studies and successful fabrications of advanced films and fibers. The book is primarily intended for advanced undergraduates, academic and industrial researchers and professionals studying or using bio-based polymers.
Biopolymer Grafting Synthesis And Properties
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Author : Vijay Kumar Thakur
language : en
Publisher: Elsevier
Release Date : 2017-09-27
Biopolymer Grafting Synthesis And Properties written by Vijay Kumar Thakur and has been published by Elsevier this book supported file pdf, txt, epub, kindle and other format this book has been release on 2017-09-27 with Technology & Engineering categories.
Biopolymer Grafting: Synthesis and Properties presents the latest research and developments in fundamental of synthesis and properties of biopolymer-based graft copolymers. The book presents a broad overview of the biopolymer grafting process, along with trends in the field. It also introduces a range of grafting methods which lead to materials with enhanced properties for a range of practical applications, along with the positives and limitations of these techniques. The book bridges the knowledge gap between the scientific principles and industrial applications of polymer grafting. This book covers synthesis and characterization of graft-copolymers of plant polysaccharides, functional separation membranes from grafted biopolymers, and polysaccharides in alternative methods for insulin delivery. Recent trends and advances in this area are discussed, assisting materials scientists and researchers in mapping out the future of these new "green" materials through value addition to enhance their use. Introduces polymer researchers to a promising, rapidly developing method for modifying naturally derived biopolymers Provides a one-stop shop covering synthesis, properties, characterization and graft copolymerization of bio-based polymeric materials Increases familiarity with a range of biopolymer grafting processes, enabling materials scientists and engineers to improve material properties and widen the range of potential biopolymer applications
Colloidal And Morphological Behavior Of Block And Graft Copolymers
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Author : Gunther Molau
language : en
Publisher: Springer Science & Business Media
Release Date : 2012-12-06
Colloidal And Morphological Behavior Of Block And Graft Copolymers written by Gunther Molau and has been published by Springer Science & Business Media this book supported file pdf, txt, epub, kindle and other format this book has been release on 2012-12-06 with Technology & Engineering categories.
The molecules of block and graft copolymers are molecules of a higher order; they consist of homopolymer subchains which are interconnected by chemical valence bonds. This structural com plexity is manifested in the unusual behavior of block and graft copolymers both in solution and in bulk. Many types of interac tions are possible in block and graft copolymers in the solid state. Polymer subchains of one molecule can interact with other polymer subchains which may belong to the same molecule or to different molecules. Since polymer chains of chemically different composition are usually incompatible, thermodynamically unfavorable as well as thermodynamically favorable interactions exist in the solid state. In solutions of block and graft copolymers, the sit uation becomes even more complex, because interactions between the solvent molecules and the various subchains of the copolymer mole cules occur in addition to the interactions between the polymer chains. This multitude of interactions gives rise to a wide spec trum of colloidal and morphological properties which have no paral lel in less complex polymer systems such as homopolymers or random copolymers. Research on the colloidal and morphological behavior of block and graft copolymers is a relatively new field of endeavor. It started in 1954, when F. M. Merrett fractionated mixtures of grafted na tural rubber with the corresponding homopolymers and observed that colloidal sols were formed at certain points during his fractional precipitations.
Recent Advances In Polymer Blends Grafts And Blocks
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Author : L. Sperling
language : en
Publisher: Springer Science & Business Media
Release Date : 2013-03-09
Recent Advances In Polymer Blends Grafts And Blocks written by L. Sperling and has been published by Springer Science & Business Media this book supported file pdf, txt, epub, kindle and other format this book has been release on 2013-03-09 with Technology & Engineering categories.
Polymer blends, grafts, and blocks, broadly defined, encompass all of the ways in which two or more kinds of poly mer molecules can be mixed and/or joined. Because these mate rials exhibit non-linear and often synergistic properties, they have found increasing application in our technology. Their multifarious uses have, in turn, spurred new research efforts, to find yet different ways of joining two kinds of polymer molecules, with novel physical and/or mechanical behavior patterns. In August, 1973, the Polymer Division of the American Chemical Society sponsored a symposium at its meeting in Chi cago on Polymer Blends, Grafts, and Blocks. This book collects the papers presented at that symposium. Yet, it is more than just a collection of papers, for we here display the thinking and efforts of a number of top-ranking American and foreign scientists in one of the world's more active research areas. The symposium emphasized the interrelationships among synthetic detail, morphology, and physical and mechanical properties. Several novel syntheses were presented. These include oxidation resistant thermoplastic elastomers (Holden), a graft copolymer based thermoplastic elastomer (Kennedy and Smith), a cationic graft copolymer (Kennedy, Charles, and Davidson), an AB crosslinked copolymer (Bamford and Eastmond), an interpenetrating polymer network (Donatelli, Thomas, and Sperling), and simultaneous interpenetrating networks (Frisch, Klempner, Frisch, and Ghiradella). Most polymer blends, grafts, and blocks exhibit two phases. The theory of microdomain structure was discussed (Helfand). The different ways that the two molecules can be joined together was examined (Kenney), and their topology was explored (Sperling).
Statistical Gradient Block And Graft Copolymers By Controlled Living Radical Polymerizations
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Author : Kelly A. Davis
language : en
Publisher: Springer Science & Business Media
Release Date : 2007-11-02
Statistical Gradient Block And Graft Copolymers By Controlled Living Radical Polymerizations written by Kelly A. Davis and has been published by Springer Science & Business Media this book supported file pdf, txt, epub, kindle and other format this book has been release on 2007-11-02 with Technology & Engineering categories.
The design and the realisation of well defined polymer architectures has become an important goal in macromolecular science. The prerequisite for achieving this goal is the availability of controlled polymerisation reactions. Living anionic polymerisation was the first reaction fulfilling these requirements. Cationic polymerisation only came into play when it was realised that it was possible to create an equilibrium between active and dormant species with the fraction of the dormant species being far superior to that of active ones. A corresponding principle applies to controlled radical polymerisation per formed in quite a number of modes such as nitroxide mediated polymerisation (NMP), atom transfer radical polymerisation (ATRP), reversible addition frag mentation chain transfer (RAFT) or catalytic chain transfer (CCT) reactions. All of these variants of controlled radical polymerisation lead to well defined archi tectures with the particular advantage that a much larger number of monomers are suitable and the reaction conditions are much less demanding than those of living ionic polymerisation reactions. Although in controlled radical polymerisation, termination reactions cannot be excluded completely, they are limited in their extent and consequently the mol ecular weight is controlled, the polydispersity index is small and functionalities can be attached to the macromolecules. These features are indicative of the real isation of well defined polymer architectures such as block copolymers, star shaped and comb shaped copolymers.