Search Results for catalysis-in-precision-polymerization

This book provides a comprehensive survey of the entire field of catalysis in polymer synthesis covering the majority of essential aspects from basic organic, organometallic and bio-chemistry to industrial production.

Author: Shiro Kobayashi

Publisher: John Wiley & Sons

ISBN: UOM:39015039915007

Category: Science

Page: 480

View: 532

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This book provides a comprehensive survey of the entire field of catalysis in polymer synthesis covering the majority of essential aspects from basic organic, organometallic and bio-chemistry to industrial production. Particular emphasis is placed on "precision polymerization," where the catalyst plays a key role in the fabrication of innovative polymers. Precision polymerization enables the production of polymers with precisely controlled structures, molecular weight, distribution and stereochemistry, free from defects.
1997-08-15 By Shiro Kobayashi

Masuda, T. Acetylene polymerization. In Catalysis in Precision Polymerization; Kobayashi, S., Ed.; Wiley: Chichester, 1997; pp 67–97. 6. Masuda, T. Acetylenic polymer. In Polymeric Material Encyclopedia; Salamone, J. C., Ed.; ...

Author: Lisa S. Baugh

Publisher: CRC Press

ISBN: 142001708X

Category: Technology & Engineering

Page: 696

View: 341

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New synthetic techniques allow chemists to modify polymer microstructures more precisely than ever, making it possible to design materials that meet increasingly demanding performance requirements. Written and edited by experts in the field, Stereoselective Polymerization with Single-Site Catalysts reviews how the relative stereochemistry of polymer chains affects polymer properties and presents the latest strategies for developing tactic polymers using single-site catalysis. This unified volume explains the mechanistic basics of tactic polymerizations, beginning with an extensive survey of the most important classes of metallocene and post-metallocene catalysts used to make polypropylenes. It also focuses on tactic stereoblock and ethylene/propylene copolymers and catalyst active site models, followed by chapters discussing the structure of more stereochemically complex polymers and polymerizations that proceed via non-vinyl-addition mechanisms. Individual chapters thoroughly describe tactic polymerizations of α-olefins, styrene, dienes, acetylenes, lactides, epoxides, acrylates, and cyclic monomers, as well as cyclopolymerizations and ditactic structures, olefin/CO polymers, and metathesis polyalkenamers. An ideal reference and supplementary text, Stereoselective Polymerization with Single-Site Catalysts enables both new and experienced chemists to better understand tactic polymers and select appropriate catalyst systems for their preparation.
2007-11-29 By Lisa S. Baugh

(b) H. Yasuda in Catalysis in Precision Polymerization (S. Kobayashi, Ed.), Wiley, 1997, p. 189. 2 (a) G. Jeske, H. Lauke, H. Mauermann, P. N. Swepston, H. Schumann, T. J. Marks, J. Am. Chem. Soc. 107, 8091 (1985).

Author: R. Blom

Publisher: Springer Science & Business Media

ISBN: 9783642594656

Category: Technology & Engineering

Page: 443

View: 378

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"Catalysis is more art than science", probably all of you have heard and even used this expression. Whether it is true or not, it alludes to the experience that new catalysts are hard to find, and near impossible to predict. Hard work and a lifetime of experience is invaluable. However, a keen mind might give insight into where to search, but not necessarily about where to find the answers. Historically, "quantum leaps" have often arisen from serendipity - we all know the story about the nickel-contaminated reactor that triggered further research towards the first coordination catalyst for ethene polymerization. Taking advan tage of this event, Karl Ziegler became the first chemist to earn both a Nobel prize and a fortune for the same invention. A broken NMR tube helped Walter Kaminsky discover the effect of high concentrations of methylaluminoxanes as co catalysts for metallocenes. When air reacted with the concentrated trim ethyl aluminum solution, sufficient amounts of methylaluminoxanes were formed, and the lazy catalyst dormant in the NMR tube suddenly became sensationally active. Ziegler and Kaminsky were lucky and had the genius needed to take advantage of their luck.
2012-12-06 By R. Blom

of this polymerization used reactivity between a conventional radical initiator and an iodofluoro-compound to enter the ... CRPs is an exciting field of research that has provided more sustainable methods of precision polymer synthesis.

Author: Andrew Dove

Publisher: Royal Society of Chemistry

ISBN: 9781788016797

Category: Technology & Engineering

Page: 648

View: 726

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In recent years polymerisation using organocatalysts has become an appealing alternative to more traditional metal-based catalysts. Conferring numerous advantages including low cost and ease of use, as well as the ability to precisely control the synthesis of advanced polymer structures, organocatalysts are increasingly used in polymer synthesis. Organic Catalysis for Polymerisation provides a holistic overview of the field, covering all process in the polymer synthesis pathway that are catalysed by organic catalysts. Sub-divided into two key sections for ease of use, the first focuses on recent developments in catalysis and the applications of catalysts to the full range of polymerisations that they have been utilised in; the second concerning monomers, arranges the field by monomer type and polymerisation mechanism. The book will therefore, provide a complimentary view of the field, providing both an overview of state-of-the-art catalyst development and also the best methodologies available to create specific polymer types. Edited by leading figures in the field and featuring contributions from researchers across the globe, this title will serve as an excellent reference for postgraduate students and researchers in both academia and industry interested in polymer chemistry, organic chemistry, catalysis and materials science.
2018-11-15 By Andrew Dove

Kobayashi S, Shoda S, Uyama H (1997) Enzymatic catalysis. In: Kobayashi S (ed) Catalysis in precision polymerization. Wiley, Chichester, pp417–441 Kobayashi S (1999) Enzymatic polymerization: a new method of polymer synthesis.

Author: Shiro Kobayashi

Publisher: Springer

ISBN: 9789811338137

Category: Technology & Engineering

Page: 389

View: 796

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This book comprehensively covers researches on enzymatic polymerization and related enzymatic approaches to produce well-defined polymers, which is valuable and promising for conducting green polymer chemistry. It consists of twelve chapters, including the following topics: The three classes of enzymes, oxidoreductases, transferases and hydrolases, have been employed as catalysts for enzymatic polymerization and modification; Well-defined polysaccharides are produced by enzymatic polymerization catalyzed by hydrolases and transferases; Hydrolase-catalyzed polycondensation and ring-opening polymerization are disclosed to produce a variety of polyesters; Polyesters are synthesized by in-vivo acyltransferase catalysis produced by microorganisms; Enzymatic polymerization catalyzed by appropriate enzymes also produces polypeptides and other polymers; Poly(aromatic)s are obtained by enzymatic polymerization catalyzed by oxidoreductases and their model complexes; Such enzymes also induce oxidative polymerization of vinyl monomers; Enzymatic modification of polymers is achieved to produce functionalized polymeric materials; The enzymatic polymerization is a green process with non-toxic catalysts, high catalyst efficiency, green solvents and renewable starting materials, and minimal by-products; Moreover, renewable resources like biomass are potentially employed as a starting substrate, producing useful polymeric materials. This book is not only educative to young polymer chemists like graduate students but also suggestive to industrial researchers, showing the importance of the future direction of polymer synthesis for maintaining a sustainable society.
2019-04-04 By Shiro Kobayashi

always lower than 50% since the only one enantiomer can be used for polymerization. In this regard, the relatively new ... Nakano, T.; Okamoto, Y. ln Catalysis in Precision Polymerization (Ed. Kobayashi, S.). Chichester, UK: John Wiley ...

Author: Iwao Ojima

Publisher: John Wiley & Sons

ISBN: 9781118678442

Category: Science

Page: 768

View: 257

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Praise for the previous editions "An excellent text . . . will no doubt provide the benchmark for comparative works for many years." —Journal of the American Chemical Society "An excellent state-of-the-art compilation of catalytic asymmetric chemistry . . . should be included in any chemistry reference collection." —Choice "This is a tremendous resource and an excellent read. I recommend immediate purchase." —Perkin Transactions Since this important work was first published in 1993, the field of catalytic asymmetric synthesis has grown explosively, spawning effective new methods for obtaining enantiomerically pure compounds on a large scale and stimulating new applications in diverse fields—from medicine to materials science. Catalytic Asymmetric Synthesis, Third Edition addresses these rapid changes through contributions from highly recognized world leaders in the field. This seminal text presents detailed accounts of the most important catalytic asymmetric reactions known today, and discusses recent advances and essential information on the initial development of certain processes. An excellent working resource for academic researchers and industrial chemists alike, the Third Edition features: Six entirely new chapters focusing on novel approaches to catalytic asymmetric synthesis including non-conventional media/conditions, organocatalysis, chiral Lewis and Bronsted acids, CH activation, carbon-heteroatom bond-forming reactions, and enzyme-catalyzed asymmetric synthesis A new section focusing on the important new reaction, asymmetric metathesis, in carbon-carbon bond-forming reactions Updated chapters on hydrogenation, carbon-carbon bond-forming reactions, hydrosilylations, carbonylations, oxidations, amplifications and autocatalysis, and polymerization reactions Retaining the best of its predecessors but now thoroughly up to date, Catalytic Asymmetric Synthesis, Third Edition serves as an excellent desktop reference and text for researchers and students from the upper-level undergraduates through experienced professionals in industry or academia.
2013-03-14 By Iwao Ojima

Über Polymerisation. Ber. ... Olefin-metathesis catalysts for the preparation of molecules and materials (nobel lecture). ... Transition metal-catalyzed living radical polymerization: toward perfection in catalysis and precision polymer ...

Author: Piet W.N.M. van Leeuwen

Publisher: John Wiley & Sons

ISBN: 9783527349029

Category: Technology & Engineering

Page: 704

View: 296

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Supramolecular Catalysis Provides a timely and detailed overview of the expanding field of supramolecular catalysis The subdiscpline of supramolecular catalysis has expanded in recent years, benefiting from the development of homogeneous catalysis and supramolecular chemistry. Supramolecular catalysis allows chemists to design custom-tailored metal and organic catalysts by devising non-covalent interactions between the various components of the reaction. Edited by two world-renowned researchers, Supramolecular Catalysis: New Directions and Developments summarizes the most significant developments in the dynamic, interdisciplinary field. Contributions from an international panel of more than forty experts address a broad range of topics covering both organic and metal catalysts, including emergent catalysis by self-replicating molecules, switchable catalysis using allosteric effects, supramolecular helical catalysts, and transition metal catalysis in confined spaces. This authoritative and up-to-date volume: Covers ligand-ligand interactions, assembled multi-component catalysts, ligand-substrate interactions, and supramolecular organocatalysis and non-classical interactions Presents recent work on supramolecular catalysis in water, supramolecular allosteric catalysis, and catalysis promoted by discrete cages, capsules, and other confined environments Highlights current research trends and discusses the future of supramolecular catalysis Includes full references and numerous figures, tables, and color illustrations Supramolecular Catalysis: New Directions and Developments is essential reading for catalytic chemists, complex chemists, biochemists, polymer chemists, spectroscopists, and chemists working with organometallics.
2022-03-14 By Piet W.N.M. van Leeuwen

Equally important, recent extensive developments have inspired “precision polymer synthesis” by living cationic and living ... Precision control of radical polymerization via transition metal catalysis: From dormant species to designed ...

Author: Tatsuo Kaiho

Publisher: John Wiley & Sons

ISBN: 9781118878651

Category: Science

Page: 512

View: 165

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This book comprehensively covers iodine, its chemistry, and itsrole in functional materials, reagents, and compounds. • Provides an up-to-date, detailed overview of iodinechemistry with discussion on elemental aspects: characteristics,properties, iodides, and halogen bonding • Acts as a useful guide for readers to learn how tosynthesize complex compounds using iodine reagents orintermediates • Describes traditional and modern processingtechniques, such as starch, cupper, blowing out, and ion exchangeresin methods • Includes seven detailed sections devoted to theapplications of iodine: Characteristics, Production, Synthesis,Biological Applications, Industrial Applications, BioorganicChemistry and Environmental Chemistry, and Radioisotopes • Features hot topics in the field, such as hypervalentiodine-mediated cross coupling reactions, agrochemicals, dyesensitized solar cells, and therapeutic agents
2014-10-09 By Tatsuo Kaiho

Kaminsky W (1998) Highly active metallocene catalysts for olefin polymerization. ... Sawamoto M (2009) Transition metal-catalyzed living radical polymerization: toward perfection in catalysis and precision polymer synthesis.

Author: Inamuddin

Publisher: Springer

ISBN: 9783030053994

Category: Technology & Engineering

Page: 1440

View: 106

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This book presents emerging economical and environmentally friendly polymer composites that are free of the side effects observed in traditional composites. It focuses on eco-friendly composite materials using granulated cork, a by-product of the cork industry; cellulose pulp from the recycling of paper residues; hemp fibers; and a range of other environmentally friendly materials procured from various sources. The book presents the manufacturing methods, properties and characterization techniques of these eco-friendly composites. The respective chapters address classical and recent aspects of eco-friendly polymer composites and their chemistry, along with practical applications in the biomedical, pharmaceutical, automotive and other sectors. Topics addressed include the fundamentals, processing, properties, practicality, drawbacks and advantages of eco-friendly polymer composites. Featuring contributions by experts in the field with a variety of backgrounds and specialties, the book will appeal to researchers and students in the fields of materials science and environmental science. Moreover, it fills the gap between research work in the laboratory and practical applications in related industries.
2019-02-01 By Inamuddin

Watanabe H, Masuda T (1997) In: Kobayashi S (ed) Catalysis in Precision Polymerization, part 1, Diene Polymerization. Wiley, Hoboken, NJ, USA, p 55 365. Evans WJ, Giarikos DG (2004) Macromolecules 37:5130 366. Evans WJ, Giarikos DG, ...

Author: Oskar Nuyken

Publisher: Springer Science & Business Media

ISBN: 9783540348092

Category: Technology & Engineering

Page: 287

View: 597

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Even though Ziegler catalysts have been known for almost half a century, rare earth metals (Ln), particularly neodymium (Nd)-based Ziegler catalyst systems, only came into the focus of industrial and academic research well afterthelargescaleapplicationoftitanium, cobaltandnickelcatalystsystems. Asadirectconsequenceofthelaterecognitionofthetechnologicalpotentialof rareearthmetalZieglercatalysts, thesesystemshaveattractedmuchattention. Considerable progress has been made in this ?eld as a result of intensive workperformed during the last fewyears. Worthmentioning is thestructural identi?cation of a variety of Ln/Al heterobimetallic complexes and the role of alkyl aluminum cocatalysts in molar mass control. Furthermore, a deeper understanding ofthe polymerization mechanism, suchas theliving character of neodymium-catalyzed diene polymerization associated with the reversible transfer of living polymer chains between Nd and Al, was revealed quite - cently. In spite of the vast number of patents and publications mainly issued duringthelastdecade, acomprehensivereviewthatcoversthescienti?caswell as the patent literature has been missing until now. In this volume we try to review the available literature by two independent approaches to Nd and Ln-catalyzed diene polymerizations. In the ?rst part of thevolume, whichisentitled"Neodymium-Based Ziegler/NattaCatalystsand their Application in Diene Polymerization", a polymer chemist's view is given with strong emphasis on Nd-based catalyst systems. Also technological and industrialaspectsofNd-catalyzeddienepolymerizationsareaddressed.Inthe secondpartofthevolume, whichisentitled"Rare-EarthMetalsandAluminum Getting Close in Ziegler-type Organometallics", a more organometallic p- spective isgivenandLn-based catalystsystems areaddressed. Bythesynopsis of these different perspectives, the reader will comprehend the complexity of Ln-based Ziegler catalyst systems and their application to the polymerization of dienes. This volume also gives a description ofthe evolution in Nd-catalyzed po- merization of dienes from the early works to the current state of the art.
2006-10-05 By Oskar Nuyken