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Author : James Robert Walker
Publisher :
ISBN 13 :
Total Pages : 202 pages
Book Rating : 4.:/5 (284 download)
Download or read book 1, Transition Metal Mediated Ring Opening Metathesis Polymerization written by James Robert Walker and published by . This book was released on 1993 with total page 202 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Laura M. M. Pascual
Publisher :
ISBN 13 :
Total Pages : 133 pages
Book Rating : 4.:/5 (18 download)
Download or read book Metal-free Photoredox-mediated Ring Opening Metathesis Polymerization written by Laura M. M. Pascual and published by . This book was released on 2018 with total page 133 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Ezat Khosravi
Publisher : Springer Science & Business Media
ISBN 13 : 9401003734
Total Pages : 489 pages
Book Rating : 4.4/5 (1 download)
Download or read book Ring Opening Metathesis Polymerisation and Related Chemistry written by Ezat Khosravi and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 489 pages. Available in PDF, EPUB and Kindle. Book excerpt: Since the last ASI in Turkey in Sept. 1995, the olefin metathesis has made remarkable strong developments with an incredible speed in various directions. New catalyst systems have been developed which have resulted in the synthesis of novel materials. Other fascinating developments have been the new catalysts for stereoselective metathesis and catalysts with considerable functional group tolerance. These new catalysts in addition to Ring Opening Metathesis Polymerisation (ROMP) and Acyclic Diene Metathesis (ADMET) are now powerful tools for Ring Closing Metathesis (RCM) and have found many applications in the synthesis of natural products. A lot of information has been established about all aspects of the olefin metathesis and there is a vast literature concerning the process, covering the initiators, mechanistic features and applications of this reaction in organic and polymer synthesis. The NATO ASI on rd th ROMP and Related Chemistry took place in Polanica-Zdroj, Poland during 3 to 15 Sept. 2000, to highlight the developments in this area and to discuss the prospects and visions for the year 2000 and beyond. The aims of the ASI were: to provide a platform for dissemination of knowledge; to promote communication between people who have a serious interest in this field of chemistry; to help establishing international scientific contacts and to provide an opportunity for the scientists with an appropriate scientific background to learn of recent developments in this field of science. There were 15 lecturers and 67 participants in this NATO ASI.
Author : Pengtao Lu
Publisher :
ISBN 13 :
Total Pages : 110 pages
Book Rating : 4.:/5 (112 download)
Download or read book Development of Organic Photoredox-mediated Ring-opening Metathesis Polymerization Through Expanded Functionalities of Initiators and Monomers written by Pengtao Lu and published by . This book was released on 2019 with total page 110 pages. Available in PDF, EPUB and Kindle. Book excerpt: Ring-opening metathesis polymerization (ROMP), which is derived from transition-metal-based olefin metathesis, has evolved into one of the most prevalent technologies for making functional polymeric materials. Due to the nature of this polymerization method, the metal alkylidene remains covalently bound to the polymer chain end until the introduction of various quenchers to terminate the polymerization. However, the removal of resultant metal by-products requires multiple purification steps. Recently, our group pioneered establishment of organic photoredox-mediated ROMP (o-ROMP), which is driven by the motivation of developing a metal-free alternative to traditional ROMP. This thesis aims to contribute to the study of o-ROMP by describing our investigations in the field, with a particular emphasis on expanding scopes of functional initiators and monomers. Chapter 1 is an introduction to o-ROMP, which start with explanation of community interests on developing organic photoredox-mediated controlled polymerization (OPCP). The general mechanisms of these novel polymerizations, including the properties of various organic photoredox catalysts, will be reviewed first. The flowing discussion will focus on different kinds of established OPCPs, which emphasizes on unique scopes for each specific methods. We will end up the introduction part with our previous efforts on developing o-ROMP. Chapter 2 begins with our initial attempts on testing the feasibility of grafting o-ROMP from small-molecular multitopic initiators. The successful combination of this multidirectional growth mode with the design of macroinitiators facilitate preparation of polyether-based triblock copolymer and polystyrene-based graft copolymer, which are both acid cleavable. Chapter 3 describes our recent efforts on expanding the scope of macroinitiator towards polyesters and polycarbonates, which are derived from organocatalyzed ring-opening polymerization (o-ROP). Grafting from bifunctional initiators in one pot, stepwise o-ROP and o-ROMP succeed in making biocompatible block copolymers via a completely metal-free pathway. Finally, Chapter 4 discusses our ongoing efforts in the expansion of monomer scopes, aiming to make functional polymers solely through o-ROMP strategy. The successful adoption of those deprotection-free functional monomers not only make it possible to enable post-polymerization modification, but also provide opportunity to control chain architectures of resulted polymer.
Author : Samir Chikkali
Publisher : CRC Press
ISBN 13 : 1351649957
Total Pages : 188 pages
Book Rating : 4.3/5 (516 download)
Download or read book Metal-Catalyzed Polymerization written by Samir Chikkali and published by CRC Press. This book was released on 2017-08-03 with total page 188 pages. Available in PDF, EPUB and Kindle. Book excerpt: The proposed book focusses on metal mediated/catalyzed “controlled/living radical polymerization” (CRP/LRP) methods. It surveys a wide variety of catalyzed polymerization reactions, making it essentially a “one stop” review in the field. A significant contribution to polymer science is “metathesis polymerization” discovered by Grubbs and others. The book will cover various metathesis polymerization methods and implications in polymer industry.
Author : Rachel Louise Tritt
Publisher :
ISBN 13 :
Total Pages : 0 pages
Book Rating : 4.:/5 (141 download)
Download or read book Improving Control and Functionality of Photoredox-mediated Metal-free Ring-opening Metathesis Polymerization written by Rachel Louise Tritt and published by . This book was released on 2023 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Ring-opening metathesis polymerization (ROMP) involves the reaction of strained cyclic olefins to create polymers that retain the unsaturation of the initial monomer. Traditionally, this transformation has been achieved using metal alkylidene initiators, typically centered around one of three transition metals (Ru, Mo, W). While this strategy has many advantages, such as well-defined initiators, functional group stability, and microstructural control, an alternate, fully organic mechanistic strategy is possible (MF-ROMP). This method is distinct from its metal-based predecessor as it is enabled by photoredox-generated radical cationic species. As a result, it is subject to different considerations, specifically surrounding the behavior of the active chain-end. MF-ROMP also has different capabilities and possible applications due to this change in reactivity, which makes the development of this technology of great interest to us.This dissertation will first contextualize MF-ROMP, providing background on traditional ROMP, as well as on the electrochemical and photochemical cyclobutanations that inspired the development of the metal-free, photoredox-mediated method on which this document is centered. The initial development of MF-ROMP will also be covered in this section (Chapter 1). Next, the proposal for and discovery of the cross-metathesis method for chain transfer in MF-ROMP will be discussed, leading into preliminary work to leverage this mechanism for a fully organic system for small molecule cross-metathesis (Chapter 2). The use of chain transfer will then continue into the development of silane-functionalized polymers and oligomers for use in fiber-reinforced composites. Future directions for these materials and methods are also included, as well as preliminary results for extending this work into surface-initiated MF-ROMP (Chapter 3). The modulation of molar mass dispersity (♯0) is introduced next, illustrating the effect that simple changes to reaction conditions have on the progression of the polymerization. Suggestions for additional investigations based on this discovery are also included (Chapter 4). Finally, a cursory study on the ability to use aromatic alkenes as initiators in MF-ROMP is summarized. This work is also accompanied by a reflection on current limitations and future development of the technology (Chapter 5).
Author : Yavuz Imamogammalu
Publisher : Springer Science & Business Media
ISBN 13 : 9401151881
Total Pages : 443 pages
Book Rating : 4.4/5 (11 download)
Download or read book Metathesis Polymerization of Olefins and Polymerization of Alkynes written by Yavuz Imamogammalu and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 443 pages. Available in PDF, EPUB and Kindle. Book excerpt: The first NATO Advanced Study Institute on Olefin Metathesis and Polymerization Catalysts was held on September 10-22, 1989 in Akcay, Turkey. Based on the fundamental research of RRSchrock, RGrubbs and K.B.Wagener in the field of ring opening metathesis polymerization (ROMP), acyclic diene metathesis (ADMET) and alkyne polymerization, these areas gained growing interest within the last years. Therefore the second NATO-ASI held on metathesis reactions was on Ring Opening Metathesis Po lymerization of Olefins and Polymerization of Alkynes on September 3-16, 1995 in Akcay, Turkey. The course joined inorganic, organic and polymer chemists to exchange their knowledge in this field. This volume contains the main and short lectures held in Akcay. To include ADMET reactions better into the title of this volume we changed it into: Metathesis Polymerization of Olefins and Alkyne Polymerization. This volume is addressed to research scientists, but also to those who start to work in the area of olefin metathesis and alkyne polymerization. The topics of the course were: mechanism of ROMP reactions/ new catalysts for ROMP/ new products by ROMP/ new catalysts for ADMET/ new products by ADMETI degradation of polymer by metathesis reactions/ alkyne polymerization and metathesis/ industrial application of metathesis reactions. The Advanced Study Institute was generously sponsored by the Scientific Affairs Division of NATO and the editor gratefully acknowledges this sponsorship. We also thank the Members of the Local Organizing Committee for their engagement on a successful NATO-AS!.
Author : K. J. Ivin
Publisher : Elsevier
ISBN 13 : 0080537979
Total Pages : 489 pages
Book Rating : 4.0/5 (85 download)
Download or read book Olefin Metathesis and Metathesis Polymerization written by K. J. Ivin and published by Elsevier. This book was released on 1997-01-07 with total page 489 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book is a follow-up to Ivins Olefin Metathesis, (Academic Press, 1983). Bringing the standard text in the field up to date, this Second Edition is a result of rapid growth in the field, sparked by the discovery of numerous well-defined metal carbene complexes that can act as very efficient initiators of all types of olefin metathesis reaction, including ring-closing metathesis of acyclic dienes, enynes, and dienynes; ring-opening metathesis polymerizationof cycloalkenes, acyclic diene metathesis polymerization; and polymerization of alkynes, as well as simple olefin metathesis. Olefin Metathesis and Metathesis Polymerization provides a broad, up-to-date account of the subject from its beginnings in 1957 to the latest applications in organic synthesis. The book follows the same format as the original, making it useful toteachers and to researchers, and will be of particular interest to those working in the fields of organic chemistry, polymer chemistry, organometallic chemistry, catalysis, materials science and chemical engineering. Discusses different classes of olefin metathesis and the choice of reaction conditions and catalyst Considers commercial processes with examples from existing and new technologies Provides a complete overview of the subject from its beginning to the present day
Author : David Anthony Robson
Publisher :
ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (93 download)
Download or read book Ring-opening Metathesis Polymerisation of Functionalised Monomers Using Well-defined Transition Metal Initiators written by David Anthony Robson and published by . This book was released on 1999 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Wade H. Shafer
Publisher : Springer Science & Business Media
ISBN 13 : 1461303931
Total Pages : 427 pages
Book Rating : 4.4/5 (613 download)
Download or read book Masters Theses in the Pure and Applied Sciences written by Wade H. Shafer and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 427 pages. Available in PDF, EPUB and Kindle. Book excerpt: Masters Theses in the Pure and Applied Sciences was first conceived, published, and disseminated by the Center for Information and Numerical Data Analysis and Synthesis (CINDAS)* at Purdue University in 1957, starting its coverage of theses with the academic year 1955. Beginning with Volume 13, the printing and dis semination phases of the activity were transferred to University Microfilms/Xerox of Ann Arbor, Michigan, with the thought that such an arrangement would be more beneficial to the academic and general scientific and technical community. After five years of this joint undertaking we had concluded that it was in the interest of all concerned if the printing and distribution of the volumes were handled by an international publishing house to assure improved service and broader dissemination. Hence, starting with Volume 18, Masters Theses in the Pure and Applied Sciences has been disseminated on a worldwide basis by Plenum Publishing Corporation of New York, and in the same year the coverage was broadened to include Canadian universities. All back issues can also be ordered from Plenum. We have reported in Volume 39 (thesis year 1994) a total of 13,953 thesis titles from 21 Canadian and 159 United States universities. We are sure that this broader base for these titles reported will greatly enhance the value of this impor tant annual reference work. While Volume 39 reports theses submitted in 1994, on occasion, certain uni versities do report theses submitted in previous years but not reported at the time.
Author : Christopher P. Simpson
Publisher :
ISBN 13 :
Total Pages : 390 pages
Book Rating : 4.:/5 (956 download)
Download or read book Transition Metal Mediated Controlled Polymerizations of 1,3-dienes, and Main Chain Fluorinated Monomers written by Christopher P. Simpson and published by . This book was released on 2014 with total page 390 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Charles E. Jr. Carraher
Publisher : Elsevier
ISBN 13 : 0323153909
Total Pages : 368 pages
Book Rating : 4.3/5 (231 download)
Download or read book Organometallic Polymers written by Charles E. Jr. Carraher and published by Elsevier. This book was released on 2012-12-02 with total page 368 pages. Available in PDF, EPUB and Kindle. Book excerpt: Organometallic Polymers focuses on the synthesis, characterization, and potential applications of organometallic polymers. The discussion is organized around seven themes: vinyl polymerization of organometallic monomers; condensation polymerization of organometallic monomers; polymer-bound catalysts; applications of organotin polymers; developments in organosilicon polymers; phosphonitrile and sulfur nitride polymers; and coordination polymers. This book is comprised of 33 chapters and begins with a general review of polymerized vinyl monomers containing transition metals, as well as the reactivity of such monomers in addition to homo- and copolymerizations. The following chapters explore the participation of the ferrocene nucleus in the polymerization of vinylferrocene and its effect on polymer properties; thermomechanical transitions of ferrocene-containing polymers; photocrosslinkable organometallic polyesters; and supported catalysts for ethylene polymerization. The remaining sections discuss antifouling applications of various tin-containing organometallic polymers; structure and applications of polyphosphazenes and polymeric sulfur nitride; and coordination of inorganic ions to polymers. This monograph will be a useful resource for organic chemists and research workers in the field.
Author : Krzysztof Matyjaszewski
Publisher : John Wiley & Sons
ISBN 13 : 9783527629107
Total Pages : 634 pages
Book Rating : 4.6/5 (291 download)
Download or read book Controlled and Living Polymerizations written by Krzysztof Matyjaszewski and published by John Wiley & Sons. This book was released on 2009-12-23 with total page 634 pages. Available in PDF, EPUB and Kindle. Book excerpt: Written by a highly prestigious and knowledgeable team of top scientists in the field, this book provides an overview of the current status of controlled/living polymerization, combining the synthetic, mechanistic and application-oriented aspects. From the contents: * Anionic Vinyl Polymerization * Carbocationic Polymerization * Radical Polymerization * Coordinative Polymerization of Olefins * Ring-Opening Polymerization of Heterocycles * Ring-Opening Metathesis Polymerization * Macromolecular Architectures * Complex Functional Macromolecules * Synthesis of Block and Graft Copolymers * Bulk and Solution Structures of Block Copolymers * Industrial Applications While some of the material is based on chapters taken from the four-volume work "Macromolecular Engineering", it is completely updated and rewritten to reflect the focus of this monograph. Must-have knowledge for polymer and organic chemists, plastics technologists, materials scientists and chemical engineers.
Author : Ezat Khosravi
Publisher : Springer Science & Business Media
ISBN 13 : 9048132762
Total Pages : 413 pages
Book Rating : 4.0/5 (481 download)
Download or read book New Smart Materials via Metal Mediated Macromolecular Engineering written by Ezat Khosravi and published by Springer Science & Business Media. This book was released on 2009-10-26 with total page 413 pages. Available in PDF, EPUB and Kindle. Book excerpt: Control over macromolecular architecture and resulting material properties has been a central goal of polymer chemistry. There has been much interest in developing new synthetic routes to prepare smart materials with novel compositions and topologies for various applications. The considerable progress in the metal mediated macromolecular engineering over the past decade has had a major impact on the development of well-defined macromolecular architectures and the synthesis of smart materials. Particularly, remarkable strong developments have been observed for the synthesis of smart materials via four metal mediated macromolecular engineering techniques; Anionic, ROMP, ATRP and Click Chemistry. These materials have found uses in advanced microelectronics, technical and biomedical applications as well as in chemical sensors applications. This book is comprised of 27 chapters written by leading scientists from NATO and Partner Countries who have greatly contributed in the area of Anionic, ROMP, ATRP and Click Chemistry. It highlights the fundamental aspects and recent developments of these four powerful techniques and evaluate their potential in the syntheses of smart materials from complex structures (grafts, brushes, dendrimers, etc.) to nanostructures (self-assembly, nano-size, etc) for a wide range of applications. The book reports on the synthesis of a wide range of well-defined complex polymeric systems such as thermoresponsive smart polymers, star copolymers, biocompatible polymers, amphipilic smart nano structured, conducting polymers, self assembled polymers, and hyperbranced polymers.
Author : J. A. Semlyen
Publisher : Springer Science & Business Media
ISBN 13 : 0412830906
Total Pages : 804 pages
Book Rating : 4.4/5 (128 download)
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.
Author : Osama M. Musa
Publisher : Springer
ISBN 13 : 3319294547
Total Pages : 642 pages
Book Rating : 4.3/5 (192 download)
Download or read book Handbook of Maleic Anhydride Based Materials written by Osama M. Musa and published by Springer. This book was released on 2016-09-22 with total page 642 pages. Available in PDF, EPUB and Kindle. Book excerpt: A handbook on syntheses and properties, production processes, and applications of maleic anhydride and maleic anhydride derived products – all in one text. This handbook provides a comprehensive overview of maleic anhydride chemistry and applications from the professional perspective. With chapters written by leading R&D scientists from the chemical industry, and edited by the Vice President and ASI Technology Chief at Ashland Specialty Ingredients (ASI), Dr. Osama M. Musa, readers will find a unique perspective and summary of the latest advancements in the field of maleic anhydride science. Maleic anhydride is produced industrially on large scale (10E3 kt/annum). Its rich chemistry makes it an important raw material for numerous products and processes (e.g. for applications in polymers and coatings), many of which are covered in this handbook for the first time in a comprehensive manner. The broad scope spans topics ranging from production techniques (including topics such as processes, catalysis, trouble-shooting), synthesis and properties of small and polymeric maleic anhydride based compounds (focusing on industrially relevant compounds as well as emerging areas of importance) and in-depth and broad discussions of commercial maleic anhydride based applications.
Author : Alaa S. Abd-El-Aziz
Publisher : John Wiley & Sons
ISBN 13 : 0471747300
Total Pages : 235 pages
Book Rating : 4.4/5 (717 download)
Download or read book Macromolecules Containing Metal and Metal-Like Elements, Volume 6 written by Alaa S. Abd-El-Aziz and published by John Wiley & Sons. This book was released on 2005-10-27 with total page 235 pages. Available in PDF, EPUB and Kindle. Book excerpt: This series provides a useful, applications-oriented forum for the next generation of macromolecules and materials. The sixth volume in this series provides useful descriptions of the transition metals and their applications, edited by high-quality team of macromolecular experts from around the world.
