Controlled Synthesis And Characterization Of Branched Functionalized And Cyclic Polymers

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Controlled Synthesis and Characterization of Branched, Functionalized, and Cyclic Polymers

Author : Vijay Chavan
Publisher :
ISBN 13 :
Total Pages : 212 pages
Book Rating : 4.:/5 (913 download)

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Book Synopsis Controlled Synthesis and Characterization of Branched, Functionalized, and Cyclic Polymers by : Vijay Chavan

Download or read book Controlled Synthesis and Characterization of Branched, Functionalized, and Cyclic Polymers written by Vijay Chavan and published by . This book was released on 2011 with total page 212 pages. Available in PDF, EPUB and Kindle. Book excerpt: A variety of methods were used to make polymers with different architecture and functionalities. The linking chemistry of vinyldimethylchlorosilane (VDMCS) with poly(styryl)lithium (M[subscript n] = 1,700-3,000 g/mol) was studied. The average degree of branching varied from 7.5 to 9.4 with an increase in concentration of VDMCS (1.2 to 5.2 eq). The intrinsic viscosities and melt viscosities (at 160°C) of the star polymers were found to be less than half of that of the corresponding linear polystyrenes. [alpha]-Pyrrolidine-functionalized polystyrene (M[subscript n] = 2,700 g/mol, M[subscript w]/M[subscript n] = 1.03, 92.5%) was successfully synthesized from [alpha]-chloromethyldimethylsilane-functionalized polystyrene (M[subscript n] = 2,600 g/mol, M[subscript w]/M[subscript n] = 1.02) based on NMR spectroscopy, MALDI-TOF and ESI mass spectrometry. The stability of silyl hydride groups under atom transfer radical polymerization conditions was proven by copolymerizing methyl methacrylate and (4-vinylphenyl)dimethylsilane (VPDS). Tapered block copolymers of isoprene, VPDS, and styrene with narrow molecular weight distributions (1.04 and 1.05) were synthesized via anionic polymerization. Evidence regarding the topology of cyclic polybutadienes was obtained by Atomic Force Microscopy of grafted polymers obtained by grafting an excess of silyl hydride-functionalized polystyrene (M[subscript n] = 8,300 g/mol, M[subscript w]/M[subscript n] =1.01) onto cyclic polybutadiene (M[subscript n]=88,000 g/mol, M[subscript w]/M[subscript n] = 2.0). The reactivity of polyisobutylene carbocations was compared with respect to competitive electrophilic addition to a vinyl group versus silyl hydride transfer by investigating the reaction with VPDS. Based on GPC results, and 1H and 13C NMR spectroscopy, no evidence for any vinyl group addition was observed. A successful attempt was made to prepare electrospun fibers from fluoro-functionalized styrene-butadiene elastomers. The water contact angle of these surfaces was found to be 162.8° [plus or minus] 3.8° for the fibrous mat of the fluorinated polymers as compared to 151.2° [plus or minus] 2.4° for the analogous fibrous mat of the non-fluorinated polymers. In-chain functionalization of tapered styrene butadiene rubber using chloromethydimethylsilane was quantitatively done via a hydrosilation reaction. Pyrrolidine-functionalized styrene butadiene rubber was obtained in 71% yield after reacting pyrrolidine with chloromethyldimethylsilane-functionalized styrene butadiene rubber. In-chain, silyl hydride-functionalized, deuterated polystyrene (M[subscript n] = 2,100 g/mol, M[subscript w]/M[subscript n] = 1.01) was functionalized with allyl cyanide in the presence of Karstedt's catalyst to obtain in-chain cyano-functionalized, deuterated polystyrene (45% based on the mass of in-chain, cyano-functionalized deuterated polystyrene obtained).

Complex Macromolecular Architectures

Author : Nikos Hadjichristidis
Publisher : John Wiley & Sons
ISBN 13 : 0470828277
Total Pages : 840 pages
Book Rating : 4.4/5 (78 download)

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Book Synopsis Complex Macromolecular Architectures by : Nikos Hadjichristidis

Download or read book Complex Macromolecular Architectures written by Nikos Hadjichristidis and published by John Wiley & Sons. This book was released on 2011-04-20 with total page 840 pages. Available in PDF, EPUB and Kindle. Book excerpt: The field of CMA (complex macromolecular architecture) stands at the cutting edge of materials science, and has been a locus of intense research activity in recent years. This book gives an extensive description of the synthesis, characterization, and self-assembly of recently-developed advanced architectural materials with a number of potential applications. The architectural polymers, including bio-conjugated hybrid polymers with poly(amino acid)s and gluco-polymers, star-branched and dendrimer-like hyperbranched polymers, cyclic polymers, dendrigraft polymers, rod-coil and helix-coil block copolymers, are introduced chapter by chapter in the book. In particular, the book also emphasizes the topic of synthetic breakthroughs by living/controlled polymerization since 2000. Furthermore, renowned authors contribute on special topics such as helical polyisocyanates, metallopolymers, stereospecific polymers, hydrogen-bonded supramolecular polymers, conjugated polymers, and polyrotaxanes, which have attracted considerable interest as novel polymer materials with potential future applications. In addition, recent advances in reactive blending achieved with well-defined end-functionalized polymers are discussed from an industrial point of view. Topics on polymer-based nanotechnologies, including self-assembled architectures and suprastructures, nano-structured materials and devices, nanofabrication, surface nanostructures, and their AFM imaging analysis of hetero-phased polymers are also included. Provides comprehensive coverage of recently developed advanced architectural materials Covers hot new areas such as: click chemistry; chain walking; polyhomologation; ADMET Edited by highly regarded scientists in the field Contains contributions from 26 leading experts from Europe, North America, and Asia Researchers in academia and industry specializing in polymer chemistry will find this book to be an ideal survey of the most recent advances in the area. The book is also suitable as supplementary reading for students enrolled in Polymer Synthetic Chemistry, Polymer Synthesis, Polymer Design, Advanced Polymer Chemistry, Soft Matter Science, and Materials Science courses. Color versions of selected figures can be found at www.wiley.com/go/hadjichristidis

Living and Controlled Polymerization

Author : Joseph Jagur-Grodzinski
Publisher : Nova Publishers
ISBN 13 : 9781594543302
Total Pages : 398 pages
Book Rating : 4.5/5 (433 download)

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Book Synopsis Living and Controlled Polymerization by : Joseph Jagur-Grodzinski

Download or read book Living and Controlled Polymerization written by Joseph Jagur-Grodzinski and published by Nova Publishers. This book was released on 2006 with total page 398 pages. Available in PDF, EPUB and Kindle. Book excerpt: The living/controlled polymerisation techniques opened new vistas in polymer chemistry. The leading authorities in this field and its pioneers contributed chapters to this collective volume. The controlled polymerisation techniques have enabled preparation of polymers, copolymers, and block copolymers with predetermined molecular weights and narrow polydispersity, in which functional groups or biologically active molecules could be placed at well defined locations. They have also enabled preparation of advanced polymeric structures with precisely determined architectures and improved properties. Moreover, they have provided opportunities for preparation of novel polymeric materials from monomers, which before have not been suitable or accessible for such purposes. Properties of some of these polymeric materials may be significantly different from those of the existing ones. They provide opportunities for new applications. Several patents have already been approved for such speciality applications as, drug delivery, biocompatible surfaces, thermoplastic elastomers, moisture curable sealants, and so on. Many more products, based on polymers fabricated by the living/ controlled polymerisation techniques, will certainly emerge in such specialised areas as, nanotechnology, medical devices, "smart polymers", sensors , smart separation technologies, optical fibres and other optical applications, various biomaterials, etc.

Functionalized Polymers

Author : Narendra Pal Singh Chauhan
Publisher : CRC Press
ISBN 13 : 1000291111
Total Pages : 304 pages
Book Rating : 4.0/5 (2 download)

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Book Synopsis Functionalized Polymers by : Narendra Pal Singh Chauhan

Download or read book Functionalized Polymers written by Narendra Pal Singh Chauhan and published by CRC Press. This book was released on 2021-05-14 with total page 304 pages. Available in PDF, EPUB and Kindle. Book excerpt: Functionalized polymers are macromolecules to which chemically bound functional groups are attached which can be used as catalysts, reagents, protective groups, etc. Functionalized polymers have low cost, ease of processing and attractive features for functional organic molecules. Chemical reactions for the introduction of functional groups in polymers and the conversion of functional groups in polymers depend on different properties. Such properties are of great importance for functionalization reactions for possible applications of reactive polymers. This book deals with the synthesis and design of various functional polymers, the modification of preformed polymer backbones and their various applications.

Cyclic Polymers

Author : J. A. Semlyen
Publisher : Springer Science & Business Media
ISBN 13 : 0412830906
Total Pages : 804 pages
Book Rating : 4.4/5 (128 download)

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Book Synopsis Cyclic Polymers by : J. A. Semlyen

Download or read book Cyclic Polymers written by J. A. Semlyen and published by Springer Science & Business Media. This book was released on 2000-08-31 with total page 804 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.

Hyperbranched Polymers

Author : Deyue Yan
Publisher : John Wiley & Sons
ISBN 13 : 047093476X
Total Pages : 414 pages
Book Rating : 4.4/5 (79 download)

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Book Synopsis Hyperbranched Polymers by : Deyue Yan

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.

Synthesis and Characterization of Cyclic Polymers and Biodegradable Networks

Author : Mazen Makhatreh Garaleh
Publisher :
ISBN 13 :
Total Pages : 159 pages
Book Rating : 4.:/5 (255 download)

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Book Synopsis Synthesis and Characterization of Cyclic Polymers and Biodegradable Networks by : Mazen Makhatreh Garaleh

Download or read book Synthesis and Characterization of Cyclic Polymers and Biodegradable Networks written by Mazen Makhatreh Garaleh and published by . This book was released on 2005 with total page 159 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Smart and Functional Polymers

Author : Jianxun Ding
Publisher : MDPI
ISBN 13 : 3039215906
Total Pages : 306 pages
Book Rating : 4.0/5 (392 download)

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Book Synopsis Smart and Functional Polymers by : Jianxun Ding

Download or read book Smart and Functional Polymers written by Jianxun Ding and published by MDPI. This book was released on 2019-11-20 with total page 306 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book is based on the Special Issue of the journal Molecules on “Smart and Functional Polymers”. The collected research and review articles focus on the synthesis and characterization of advanced functional polymers, polymers with specific structures and performances, current improvements in advanced polymer-based materials for various applications, and the opportunities and challenges in the future. The topics cover the emerging synthesis and characterization technology of smart polymers, core−shell structure polymers, stimuli-responsive polymers, anhydrous electrorheological materials fabricated from conducting polymers, reversible polymerization systems, and biomedical polymers for drug delivery and disease theranostics. In summary, this book provides a comprehensive overview of the latest synthesis approaches, representative structures and performances, and various applications of smart and functional polymers. It will serve as a useful reference for all researchers and readers interested in polymer sciences and technologies.

Functional Polymers

Author : Raja Shunmugam
Publisher : CRC Press
ISBN 13 : 1771882972
Total Pages : 459 pages
Book Rating : 4.7/5 (718 download)

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Book Synopsis Functional Polymers by : Raja Shunmugam

Download or read book Functional Polymers written by Raja Shunmugam and published by CRC Press. This book was released on 2017-05-08 with total page 459 pages. Available in PDF, EPUB and Kindle. Book excerpt: This new book covers the synthetic as well application aspects of functional polymers. It highlights modern trends in the field and showcases the recent characterization techniques that are being employed in the field of polymer science. The chapters are written by top-notch scientists who are internationally recognized in the field. The chapters will highlight the modern trend in the field.

Controlled Synthesis of Functional Polymers

Author : Jaroslav Kahovec
Publisher : Wiley-VCH
ISBN 13 : 9783527301409
Total Pages : 0 pages
Book Rating : 4.3/5 (14 download)

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Book Synopsis Controlled Synthesis of Functional Polymers by : Jaroslav Kahovec

Download or read book Controlled Synthesis of Functional Polymers written by Jaroslav Kahovec and published by Wiley-VCH. This book was released on 2001-02-15 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: 39th Microsymposium of the Prague Meetings on Macromolecules Advances in Polymerization Methods. Controlled Synthesis of Functionalized Polymers Prague, Czech Republic, 1999

Synthesis and Characterization of Highly Functionalized Carbon-chain Polymers

Author : Lawino C. Kagumba
Publisher :
ISBN 13 :
Total Pages : 548 pages
Book Rating : 4.:/5 (487 download)

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Book Synopsis Synthesis and Characterization of Highly Functionalized Carbon-chain Polymers by : Lawino C. Kagumba

Download or read book Synthesis and Characterization of Highly Functionalized Carbon-chain Polymers written by Lawino C. Kagumba and published by . This book was released on 2001 with total page 548 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Functionalized polymers: synthesis and properties

Author :
Publisher :
ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (724 download)

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Book Synopsis Functionalized polymers: synthesis and properties by :

Download or read book Functionalized polymers: synthesis and properties written by and published by . This book was released on 2010 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Sequence-controlled Polymers

Author : Jean-François Lutz
Publisher : ACS Symposium
ISBN 13 : 9780841230019
Total Pages : 0 pages
Book Rating : 4.2/5 (3 download)

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Book Synopsis Sequence-controlled Polymers by : Jean-François Lutz

Download or read book Sequence-controlled Polymers written by Jean-François Lutz and published by ACS Symposium. This book was released on 2015-01-07 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: The present volume of the ACS Symposium series is dedicated to the emerging field of sequence-controlled polymers. The objectives of this new research discipline include the synthesis, characterization, and exploitation of synthetic macromolecules containing ordered sequences of comonomers. This topic has gained significant importance in academic polymer research during the last several years. The community, which was initially composed of a few isolated researchers, has rapidly grown in a dynamic international network. As a consequence, the first international symposium on sequence-controlled polymers was organized at the 246th American Chemical Society national meeting in Indianapolis. All the chapters in this volume are related to the invited oral presentations that were given during the symposium. This selection of papers gives an overview of the field and highlights its interdisciplinary nature. Indeed, the symposium participants and the authors of this book are not only polymer chemists, but also organic chemists, supramolecular chemists, and physico-chemists. As a matter of fact, the design of tailor-made sequence-controlled polymers is a topic that goes beyond the traditional barriers of synthetic polymer science. Sequence-Controlled Polymers: Synthesis, Self-Assembly, and Properties will be of interest to a broad readership, as it is the first book to explore the important topic of sequence-controlled polymers. Based on its recent academic impact, it is reasonable to expect that this field of research will continue to grow in the next decades.

New Methods of Polymer Synthesis

Author : J.R. Ebdon
Publisher : Springer Science & Business Media
ISBN 13 : 940110607X
Total Pages : 348 pages
Book Rating : 4.4/5 (11 download)

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Book Synopsis New Methods of Polymer Synthesis by : J.R. Ebdon

Download or read book New Methods of Polymer Synthesis written by J.R. Ebdon and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 348 pages. Available in PDF, EPUB and Kindle. Book excerpt: Few polymer chemists have much familiarity with recent developments in the synthesis of speciality polymers. This volume provides up-to-date reviews of areas of current interest and is directed at polymer chemists in the academic world and industry.

Advances in Polymerization Methods: Controlled Synthesis of Functionalized Polymers

Author :
Publisher :
ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (245 download)

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Book Synopsis Advances in Polymerization Methods: Controlled Synthesis of Functionalized Polymers by :

Download or read book Advances in Polymerization Methods: Controlled Synthesis of Functionalized Polymers written by and published by . This book was released on 1999 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Synthesis and Characterization of Functionalized Silicon Polymers

Author : Jianqing Lu
Publisher :
ISBN 13 :
Total Pages : 370 pages
Book Rating : 4.:/5 (394 download)

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Book Synopsis Synthesis and Characterization of Functionalized Silicon Polymers by : Jianqing Lu

Download or read book Synthesis and Characterization of Functionalized Silicon Polymers written by Jianqing Lu and published by . This book was released on 1995 with total page 370 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Conjugated Polymers

Author : Klaus Mullen
Publisher : Royal Society of Chemistry
ISBN 13 : 1849737991
Total Pages : 246 pages
Book Rating : 4.8/5 (497 download)

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Book Synopsis Conjugated Polymers by : Klaus Mullen

Download or read book Conjugated Polymers written by Klaus Mullen and published by Royal Society of Chemistry. This book was released on 2014 with total page 246 pages. Available in PDF, EPUB and Kindle. Book excerpt: Conjugated polymers are gaining a lot of interest due to their inherent functional properties and applications in plastic electronics. In order to develop new functional polymers researchers need the background information on the synthesis of the different polymer systems. This book focuses on the practical preparation of conjugated polymers with each chapter discussing a particular type of conjugated polymer including a general explanation of the polymer, experimental details for synthesis and characterization.