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Author : Eva Malmström
Publisher :
ISBN 13 :
Total Pages : 79 pages
Book Rating : 4.:/5 (187 download)
Download or read book Hyperbranched Aliphatic Polyesters written by Eva Malmström and published by . This book was released on 1996 with total page 79 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Heléne Magnusson
Publisher :
ISBN 13 : 9789172831216
Total Pages : 65 pages
Book Rating : 4.8/5 (312 download)
Download or read book Hyperbranched Aliphatic Polyesters and Polyethers written by Heléne Magnusson and published by . This book was released on 2001 with total page 65 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Jacques Roovers
Publisher : Springer Science & Business Media
ISBN 13 : 3540650059
Total Pages : 280 pages
Book Rating : 4.5/5 (46 download)
Download or read book Branched Polymers II written by Jacques Roovers and published by Springer Science & Business Media. This book was released on 1998-12-11 with total page 280 pages. Available in PDF, EPUB and Kindle. Book excerpt: With contributions by numerous experts
Download or read book Hyperbranched Aliphatic Polyester Via Cross‐Metathesis Polymerization: Synthesis and Postpolymerization Modification written by and published by . This book was released on 2017 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Jasna Vuković
Publisher :
ISBN 13 :
Total Pages : 0 pages
Book Rating : 4.:/5 (18 download)
Download or read book Synthesis and Characterization of Aliphatic Hyperbranched Polyesters written by Jasna Vuković and published by . This book was released on 2006 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : A.-C. Albertsson
Publisher : Springer
ISBN 13 : 3540457348
Total Pages : 188 pages
Book Rating : 4.5/5 (44 download)
Download or read book Degradable Aliphatic Polyesters written by A.-C. Albertsson and published by Springer. This book was released on 2003-07-03 with total page 188 pages. Available in PDF, EPUB and Kindle. Book excerpt: A renewed interest in aliphatic polyesters has resulted in developing materials important in the biomedical and ecological fields. Mainly materials such as PLA and PCL homopolymers have so far been used in most applications. There are many other monomers which can be used. Different molecular structures give a wider range of physical properties as well as the possibility of regulating the degradation rate. By using different types of initiators and catalysts, ring-opening polymerization of lactones and lactides provides macromolecules with advanced molecular architectures. In the future, new degradable polymers should be able to participate in the metabolism of nature. Some examples of novel polymers with inherent environmentally favorable properties such as renewability and degradability and a series of interesting monomers found in the metabolisms and cycles of nature are given.
Author : Lesley M. Hamilton
Publisher :
ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (594 download)
Download or read book The Synthesis and Characterisation of Some Aliphatic Hyperbranched Polyesters written by Lesley M. Hamilton and published by . This book was released on 1996 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Hyperbranched Polyesters for Polyurethane Coatings: Their Preparation, Structure and Crosslinking with Polyisocyanates written by and published by . This book was released on 2007 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: In this work, hyperbranched aromatic polyesters-polyphenols based on 4,4-bis(4' hydroxyƠphenyl)pentanoic acid (BHPPA) were prepared and, according to the authors knowledge, for the first time tested as precursors for polyurethane bulk resins and coatings. Comparison of poly-BHPPA with competing products The materials prepared in this work show better properties than their aliphatic polyester-polyol analoga based on 2,2-bis-(hydroxymethyl)propanoic acid (BHMPA). Especially, the solubility of poly-BHPPA in organic solvents is better and poly-BHPPAs also do not tend to microphase separation during their reaction with isocyanates, in contrast to poly-BHMPAs. The poly-BHPPA and the polyurethane networks made from them display higher Tg values than analogous poly- BHMPA compounds. Because of the high Tg of the reacting and final systems, curing must occur at elevated temperatures (90°C) in order to avoid undercure. The lower reactivity of phenolic OH groups prevents the reaction from being too fast at that temperature. A drawback of the polyurethanes based on the aromatic polyesters-polyols prepared is the lower thermal stability of their urethane bonds, if compared to aliphatic urethanes. An interesting possibility for future investigations would be the modification of the BHPPA monomer in order to change the OH functionality from phenolic to aliphatic OH, e.g. by replacement of the phenolic OH by hydroxymethyl or hydroxyethyl groups (requires a strong modification of the monomer synthesis) or simpler by reacting the phenolic OH of BHPPA with a suitable reagent like oxirane, which would lead to groups like O-CH2-CH2-OH in the place of the phenolic OH. Such a BHPPA modification should in turn yield modified "poly-BHPPA" polycondensates, which would combine the advantages of poly-BHPPA with those of aliphatic OH precursors of polyurethanes. Poly-BHPPA synthesis Hyperbranched polymers of the 4,4-bis-(4'-hydroxyphenyl)pentanoic acid (BHPPA) were synthesized successfully by t.
Author : Albena Lederer
Publisher : Royal Society of Chemistry
ISBN 13 : 1782622462
Total Pages : 305 pages
Book Rating : 4.7/5 (826 download)
Download or read book Hyperbranched Polymers written by Albena Lederer and published by Royal Society of Chemistry. This book was released on 2015-08-20 with total page 305 pages. Available in PDF, EPUB and Kindle. Book excerpt: There is great commercial interest in hyperbranched polymers from manufacturers of polymer formulations, additives and coatings, polymer electronics and pharmaceuticals. However, these polymers are difficult to characterize due to their very complex, multidimensional distribution and there is a great need to understand how to control their synthesis to obtain certain material properties. Hyperbranched Polymers is the first book to examine in detail the recent advances in hyperbranched polymers. Focusing on the structural characterization of hyperbranched polymers, the book summarizes the research in the field and makes a direct correlation between the chemical structure and global molecular properties. This correlation is essential for understanding the structure–properties relation and fills the gap between the synthetic advances and physico-chemical understanding of this polymer class. Written by acknowledged experts in the field, the book will appeal to both scientists working in fundamental research, as well as industrial manufacturers of dendritic polymers.
Author : Deyue Yan
Publisher : John Wiley & Sons
ISBN 13 : 047093476X
Total Pages : 414 pages
Book Rating : 4.4/5 (79 download)
Download or read book Hyperbranched Polymers written by Deyue Yan and published by John Wiley & Sons. This book was released on 2011-05-04 with total page 414 pages. Available in PDF, EPUB and Kindle. Book excerpt: A much-needed overview of the state of the art of hyperbranched polymers The last two decades have seen a surge of interest in hyperbranched polymers due to their ease of synthesis on a large scale and their promising applications in diverse fields, from medicine to nanotechnology. Written by leading scientists in academia and industry, this book provides for the first time a comprehensive overview of the topic, bringing together in one complete volume a wealth of information previously available only in articles scattered across the literature. Drawing on their work at the cutting edge of this dynamic area of research, the authors cover everything readers need to know about hyperbranched polymers when designing highly functional materials. Clear, thorough discussions include: How irregular branching affects polymer properties and their potential applications Important theoretical basics, plus a useful summary of characterization techniques How hyperbranched polymers compare with dendrimers as well as linear polymers Future trends in the synthesis and application of hyperbranched polymers Geared to novices and experts alike, Hyperbranched Polymers is a must-have resource for anyone working in polymer architectures, polymer engineering, and functional materials. It is also useful for scientists in related fields who need a primer on the synthesis, theory, and applications of hyperbranched polymers.
Author : Heléne Magnusson
Publisher :
ISBN 13 : 9789171705259
Total Pages : 41 pages
Book Rating : 4.7/5 (52 download)
Download or read book Hyperbranched Aliphatic Polymers written by Heléne Magnusson and published by . This book was released on 2000 with total page 41 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Martin E. Rogers
Publisher : John Wiley & Sons
ISBN 13 : 0471461377
Total Pages : 619 pages
Book Rating : 4.4/5 (714 download)
Download or read book Synthetic Methods in Step-Growth Polymers written by Martin E. Rogers and published by John Wiley & Sons. This book was released on 2003-08-08 with total page 619 pages. Available in PDF, EPUB and Kindle. Book excerpt: Alles über die Stufenwachstums-Polymerisation - von Syntheseverfahren und Reinigungsmethoden bis zur Charakterisierung der Produkte - finden Sie in diesem Buch. - bietet einen Ausblick auf zukünftige Trends - mit historischen Informationen - erläutert die Klassifikation von Stufenwachstumspolymeren
Author : Jacques Roovers
Publisher : Springer
ISBN 13 : 3540497803
Total Pages : 280 pages
Book Rating : 4.5/5 (44 download)
Download or read book Branched Polymers II written by Jacques Roovers and published by Springer. This book was released on 2003-07-01 with total page 280 pages. Available in PDF, EPUB and Kindle. Book excerpt: With contributions by numerous experts
Author : A.-C. Albertsson
Publisher : Springer
ISBN 13 : 9783662146576
Total Pages : 180 pages
Book Rating : 4.1/5 (465 download)
Download or read book Degradable Aliphatic Polyesters written by A.-C. Albertsson and published by Springer. This book was released on 2014-03-12 with total page 180 pages. Available in PDF, EPUB and Kindle. Book excerpt: A renewed interest in aliphatic polyesters has resulted in developing materials important in the biomedical and ecological fields. Mainly materials such as PLA and PCL homopolymers have so far been used in most applications. There are many other monomers which can be used. Different molecular structures give a wider range of physical properties as well as the possibility of regulating the degradation rate. By using different types of initiators and catalysts, ring-opening polymerization of lactones and lactides provides macromolecules with advanced molecular architectures. In the future, new degradable polymers should be able to participate in the metabolism of nature. Some examples of novel polymers with inherent environmentally favorable properties such as renewability and degradability and a series of interesting monomers found in the metabolisms and cycles of nature are given.
Author : Bernhard Rieger
Publisher : Springer Science & Business Media
ISBN 13 : 3642271537
Total Pages : 375 pages
Book Rating : 4.6/5 (422 download)
Download or read book Synthetic Biodegradable Polymers written by Bernhard Rieger and published by Springer Science & Business Media. This book was released on 2012-01-29 with total page 375 pages. Available in PDF, EPUB and Kindle. Book excerpt: Salen Metal Complexes as Catalysts for the Synthesis of Polycarbonates from Cyclic Ethers and Carbon Dioxide, by Donald J. Darensbourg.- Material Properties of Poly(Propylene Carbonates), by Gerrit. A. Luinstra and Endres Borchardt.- Poly(3-Hydroxybutyrate) from Carbon Monoxide, by Robert Reichardt and Bernhard Rieger. - Ecoflex® and Ecovio®: Biodegradable, Performance-Enabling Plastics, by K. O. Siegenthaler, A. Künkel, G. Skupin and M. Yamamoto.- Biodegradability of Poly(Vinyl Acetate) and Related Polymers, by Manfred Amann and Oliver Minge.- Recent Developments in Ring-Opening Polymerization of Lactones, by P. Lecomte and C. Jérôme.- Recent Developments in Metal-Catalyzed Ring-Opening Polymerization of Lactides and Glycolides: Preparation of Polylactides, Polyglycolide, and Poly(lactide-co-glycolide), by Saikat Dutta, Wen-Chou Hung, Bor-Hunn Huang and Chu-Chieh Lin.- Bionolle (Polybutylenesuccinate), by Yasushi Ichikawa, Tatsuya Mizukoshi.- Polyurethanes from Renewable Resources, by David A. Babb.-
Author :
Publisher : Newnes
ISBN 13 : 0080878628
Total Pages : 7752 pages
Book Rating : 4.0/5 (88 download)
Download or read book Polymer Science: A Comprehensive Reference written by and published by Newnes. This book was released on 2012-12-05 with total page 7752 pages. Available in PDF, EPUB and Kindle. Book excerpt: The progress in polymer science is revealed in the chapters of Polymer Science: A Comprehensive Reference, Ten Volume Set. In Volume 1, this is reflected in the improved understanding of the properties of polymers in solution, in bulk and in confined situations such as in thin films. Volume 2 addresses new characterization techniques, such as high resolution optical microscopy, scanning probe microscopy and other procedures for surface and interface characterization. Volume 3 presents the great progress achieved in precise synthetic polymerization techniques for vinyl monomers to control macromolecular architecture: the development of metallocene and post-metallocene catalysis for olefin polymerization, new ionic polymerization procedures, and atom transfer radical polymerization, nitroxide mediated polymerization, and reversible addition-fragmentation chain transfer systems as the most often used controlled/living radical polymerization methods. Volume 4 is devoted to kinetics, mechanisms and applications of ring opening polymerization of heterocyclic monomers and cycloolefins (ROMP), as well as to various less common polymerization techniques. Polycondensation and non-chain polymerizations, including dendrimer synthesis and various "click" procedures, are covered in Volume 5. Volume 6 focuses on several aspects of controlled macromolecular architectures and soft nano-objects including hybrids and bioconjugates. Many of the achievements would have not been possible without new characterization techniques like AFM that allowed direct imaging of single molecules and nano-objects with a precision available only recently. An entirely new aspect in polymer science is based on the combination of bottom-up methods such as polymer synthesis and molecularly programmed self-assembly with top-down structuring such as lithography and surface templating, as presented in Volume 7. It encompasses polymer and nanoparticle assembly in bulk and under confined conditions or influenced by an external field, including thin films, inorganic-organic hybrids, or nanofibers. Volume 8 expands these concepts focusing on applications in advanced technologies, e.g. in electronic industry and centers on combination with top down approach and functional properties like conductivity. Another type of functionality that is of rapidly increasing importance in polymer science is introduced in volume 9. It deals with various aspects of polymers in biology and medicine, including the response of living cells and tissue to the contact with biofunctional particles and surfaces. The last volume is devoted to the scope and potential provided by environmentally benign and green polymers, as well as energy-related polymers. They discuss new technologies needed for a sustainable economy in our world of limited resources. Provides broad and in-depth coverage of all aspects of polymer science from synthesis/polymerization, properties, and characterization methods and techniques to nanostructures, sustainability and energy, and biomedical uses of polymers Provides a definitive source for those entering or researching in this area by integrating the multidisciplinary aspects of the science into one unique, up-to-date reference work Electronic version has complete cross-referencing and multi-media components Volume editors are world experts in their field (including a Nobel Prize winner)
Author : Abhijit Bandyopadhyay
Publisher : Springer
ISBN 13 : 9811065144
Total Pages : 188 pages
Book Rating : 4.8/5 (11 download)
Download or read book Hyperbranched Polymers for Biomedical Applications written by Abhijit Bandyopadhyay and published by Springer. This book was released on 2017-09-18 with total page 188 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book presents a comprehensive study on a new class of branched polymers, known as hyperbranched polymers (HBPs). It discusses in detail the synthesis strategies for these particular classes of polymers as well as biocompatible and biodegradable HBPs, which are of increasing interest to polymer technologists due to their immense potential in biomedical applications. The book also describes the one-pot synthesis technique for HBPs, which is feasible for large-scale production, as well as HBPs’ structure-property relationship, which makes them superior to their linear counterparts. The alterable functional groups present at the terminal ends of the branches make HBPs promising candidates in the biomedical domain, and the book specifically elaborates on the suitable characteristic properties of each of the potential biological HBPs’ applications. As such, the book offers a valuable reference guide for all scientists and technologists who are interested in using these newly developed techniques to achieve faster and better treatments.
