Developments In Ionic Polymers 2
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Developments In Ionic Polymers 2
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Author : A.D. Wilson
language : en
Publisher: Springer Science & Business Media
Release Date : 2012-12-06
Developments In Ionic Polymers 2 written by A.D. Wilson 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.
Ionic polymers, like elephants, are easier to recognise than to define. Several methods of classification have been attempted but none is wholly satisfactory because of the extreme diversity of ionic polymers, which range from the organic, water-soluble polyelectrolytes, through hydrogels and ionomer carboxylate rubbers, to the almost infusible inorganic silicate minerals. For this reason, a general classification is not only difficult, but has minimal utility. However, there are some characteristics of these materials that should be highlighted. The role of counterions is the significant one. These ions, either singly or as clusters, take part in the formation of ionic bonds which have a varying structural role. Often they act as crosslinks, but in the halato-polymers the ionic bonds form an integral part of the polymer backbone itself. Conversely, in polymers contain ing covalent crosslinks, such as the ion-exchange resins, the coun terions have virtually no structural role to play, since they dwell in cage-like structures without affecting the crosslinking, and are readily exchanged. They are, perhaps, best described as ion-containing polymers rather than structural ionic polymers. Another crucial factor is the role of water in ionic polymers. The presence of ionic bonds means that there is a tendency for these materials to interact with water. Where the ionic polymer contains a high proportion of ionic units, it acts as a hydrogel and may be highly soluble. Such interactions with water decrease sharply as the ionic content is reduced, though even then water can act as a plasticiser.
Developments In Ionic Polymers
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Author : Alan D. Wilson
language : en
Publisher:
Release Date : 1983
Developments In Ionic Polymers written by Alan D. Wilson and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1983 with Polymerization categories.
Developments In Ionic Polymers
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Author : Alan D. Wilson
language : en
Publisher:
Release Date : 1986
Developments In Ionic Polymers written by Alan D. Wilson and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1986 with categories.
Developments In Ionic Polymers
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Author :
language : en
Publisher:
Release Date : 1983
Developments In Ionic Polymers written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1983 with Addition polymerization categories.
New Developments In Ionic Polymerization
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Author : Groupe française des polymères
language : en
Publisher:
Release Date : 1978*
New Developments In Ionic Polymerization written by Groupe française des polymères and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1978* with Addition polymerization categories.
Solvents Ionic Liquids And Solvent Effects
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Author : Daniel Glossman-Mitnik
language : en
Publisher: BoD – Books on Demand
Release Date : 2020-01-15
Solvents Ionic Liquids And Solvent Effects written by Daniel Glossman-Mitnik and has been published by BoD – Books on Demand this book supported file pdf, txt, epub, kindle and other format this book has been release on 2020-01-15 with Science categories.
Solvents and ionic liquids are ubiquitous within our whole life since ancient times and their effects are actually being studied through basic sciences like Chemistry, Physics and Biology as well as being researched by a large number of scientific disciplines.This book represents an attempt to present examples on the utility of old and new solvents and the effects they exercise on several fields of academic and industrial interest. The first section, Solvents, presents information on bio-solvents and their synthesis, industrial production and applications, about per and trichloroethylene air monitoring in dry cleaners in the city of Sfax (Tunsia) and on the synthesis of polyimides using molten benzoic acid as the solvent. The second section, Ionic Liquids, shows information about the synthesis, physicochemical characterization and exploration of antimicrobial activities of imidazolium ionic liquid-supported Schiff base and its transition metal complexes, the technology of heterogenization of transition metal catalysts towards the synthetic applications in an ionic liquid matrix, the progress in ionic liquids as reaction media, monomers, and additives in high-performance polymers, a pre-screening of ionic liquids as gas hydrate inhibitor via application of COSMO-RS for methane hydrate, the extraction of aromatic compounds from their mixtures with alkanes from ternary to quaternary (or higher) systems and a review on ionic liquids as environmental benign solvent for cellulose chemistry. The final section, Solvent Effects, displays interesting information on solvent effects on dye sensitizers derived from anthocyanidins for applications in photocatalysis, about the solvent effect on a model of SNAr reaction in conventional and non-conventional solvents, and on solvent effects in supramolecular systems.
Ionic Polymerization And Living Polymers
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Author : M. Szwarc
language : en
Publisher: Springer
Release Date : 2012-10-26
Ionic Polymerization And Living Polymers written by M. Szwarc and has been published by Springer this book supported file pdf, txt, epub, kindle and other format this book has been release on 2012-10-26 with Technology & Engineering categories.
More than simply an up-to-date review of ionic polymerization, this book presents an in-depth and critical comparison of the anionic and cationic polymerization of vinyl monomers and heterocyclic compounds. These different modes of ionic polymerization are examined with regard to their capacity for producing living polymers. The concept of living polymers is re-examined and redefined in light of current knowledge of ionic polymerization and possible side reactions. Throughout, the authors offer perceptive insights into the basic concepts of polymerization chemistry and polymerization reaction mechanisms. The book begins with a review of ionic and radical polymerizations, the development of ionic polymerization, living and dormant polymers, and polymerizability. It goes on to consider important aspects of the structure and properties of ionic species; initiation and propagation of ionic polymerization; polymerization steps other than initiation or propagation, such as termination, isomerization, transfer, backbiting, and degraduation; and ionic copolymerization. Ionic Polymerization and Living Polymers is a much needed advanced text that will be widely read and referred to by polymer scientists, macromolecular chemists, and materials scientists.
Ionic Polymerization And Living Polymers
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Author : M. Szwarc
language : en
Publisher: Springer Science & Business Media
Release Date : 2012-12-06
Ionic Polymerization And Living Polymers written by M. Szwarc 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.
More than simply an up-to-date review of ionic polymerization, this book presents an in-depth and critical comparison of the anionic and cationic polymerization of vinyl monomers and heterocyclic compounds. These different modes of ionic polymerization are examined with regard to their capacity for producing living polymers. The concept of living polymers is re-examined and redefined in light of current knowledge of ionic polymerization and possible side reactions. Throughout, the authors offer perceptive insights into the basic concepts of polymerization chemistry and polymerization reaction mechanisms. The book begins with a review of ionic and radical polymerizations, the development of ionic polymerization, living and dormant polymers, and polymerizability. It goes on to consider important aspects of the structure and properties of ionic species; initiation and propagation of ionic polymerization; polymerization steps other than initiation or propagation, such as termination, isomerization, transfer, backbiting, and degraduation; and ionic copolymerization. Ionic Polymerization and Living Polymers is a much needed advanced text that will be widely read and referred to by polymer scientists, macromolecular chemists, and materials scientists.
Developments In Polymerisation Ionic And Ring Opening Polymerisation And The Polymerisation Of Conjugated Dienes
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Author : Robert Nobbs Haward
language : en
Publisher:
Release Date : 1979
Developments In Polymerisation Ionic And Ring Opening Polymerisation And The Polymerisation Of Conjugated Dienes written by Robert Nobbs Haward and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1979 with Polymerization categories.
Polymerized Ionic Liquids
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Author : Ali Eftekhari
language : en
Publisher: Royal Society of Chemistry
Release Date : 2017-09-18
Polymerized Ionic Liquids written by Ali Eftekhari and has been published by Royal Society of Chemistry this book supported file pdf, txt, epub, kindle and other format this book has been release on 2017-09-18 with Technology & Engineering categories.
The applications of ionic liquids can be enormously expanded by arranging the organic ions in the form of a polymer architecture. Polymerized ionic liquids (PILs), also known as poly(ionic liquid)s or polymeric ionic liquids, provide almost all features of ionic polymers plus a rare versatility in design. The mechanical properties of the solid or solid-like polymers can also be controlled by external stimuli, the basis for designing smart materials. Known for over four decades, PILs are a member of the ionic polymers family. Although the previous forms of ionic polymers have a partial ionicity, PILs are entirely composed of ions. Therefore, they offer a better flexibility for designing a responsive architecture as smart materials. Despite the terminology, PILs can be synthesized from solid organic ionic salts since the monomer liquidity is not a requirement for the polymerization process. Ionicity can also be induced to a neutral polymer by post-polymerization treatments. This is indeed an emerging field whose capabilities have been somehow overshadowed by the popularity of ionic liquids. However, recent reports in the literature have shown impressive potentials for the future. Written by leading authors, the present book provides a comprehensive overview of this exciting area, discussing various aspects of PILs and their applications as smart materials. Owing to the novelty of this area of research, the book will appeal to a broad readership including students and researchers from materials science, polymer science, chemistry, and physics.