New Frontiers in Polymer Synthesis

New Frontiers in Polymer Synthesis PDF Author: Shiro Kobayashi
Publisher: Springer Science & Business Media
ISBN: 3540698078
Category : Technology & Engineering
Languages : en
Pages : 196

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Book Description
It is generally accepted that a new material is often developed by ?nding a new synthesis method of reaction or a new reaction catalyst. Historically, a typical example may be referred to as a Ziegler–Natta catalyst, which has allowed large-scale production of petroleum-based polyole?ns since the middle of the 20th century. New polymer synthesis, therefore, will hopefully lead to creation of new polymer materials in the 21st century. This special issue contributed by three groups focuses on recent advances in polymer synthesis methods, which handle the cutting-edge aspects of the advanced technology. The ?rst article by Yokozawa and coworkers contains an overview of the - action control in various condensation polymerizations (polycondensations). Advanced technologies enabled the control of stereochemistry (regio-, g- metrical-, and enantio-selections), chemoselectivity, chain topology, and st- chiometry of monomers, giving a high molecular weight polymer. It has been recognized for a long time, however, that polycondensation is a dif?cult p- cess in controlling the reaction pathway, because the reaction is of step-growth and the reactivity of monomers, oligomers, and polymers are almost the same during the reaction and hence, the molecular weight of polymers and its d- tribution (M /M ) are impossible to regulate. The authors’ group developed w n a new reaction system (chain-growth condensation polymerization), changing the nature of polycondensation from step-growth to chain-growth; namely the propagating chain-end is active, allowing for control of the product molecular weight as well as the distribution.

New Frontiers in Polymer Synthesis

New Frontiers in Polymer Synthesis PDF Author: Shiro Kobayashi
Publisher: Springer Science & Business Media
ISBN: 3540698078
Category : Technology & Engineering
Languages : en
Pages : 196

Get Book Here

Book Description
It is generally accepted that a new material is often developed by ?nding a new synthesis method of reaction or a new reaction catalyst. Historically, a typical example may be referred to as a Ziegler–Natta catalyst, which has allowed large-scale production of petroleum-based polyole?ns since the middle of the 20th century. New polymer synthesis, therefore, will hopefully lead to creation of new polymer materials in the 21st century. This special issue contributed by three groups focuses on recent advances in polymer synthesis methods, which handle the cutting-edge aspects of the advanced technology. The ?rst article by Yokozawa and coworkers contains an overview of the - action control in various condensation polymerizations (polycondensations). Advanced technologies enabled the control of stereochemistry (regio-, g- metrical-, and enantio-selections), chemoselectivity, chain topology, and st- chiometry of monomers, giving a high molecular weight polymer. It has been recognized for a long time, however, that polycondensation is a dif?cult p- cess in controlling the reaction pathway, because the reaction is of step-growth and the reactivity of monomers, oligomers, and polymers are almost the same during the reaction and hence, the molecular weight of polymers and its d- tribution (M /M ) are impossible to regulate. The authors’ group developed w n a new reaction system (chain-growth condensation polymerization), changing the nature of polycondensation from step-growth to chain-growth; namely the propagating chain-end is active, allowing for control of the product molecular weight as well as the distribution.

New Frontiers in Polymer Synthesis

New Frontiers in Polymer Synthesis PDF Author: Shiro Kobayashi
Publisher: Springer
ISBN: 3540698086
Category : Technology & Engineering
Languages : en
Pages : 196

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Book Description
It is generally accepted that a new material is often developed by ?nding a new synthesis method of reaction or a new reaction catalyst. Historically, a typical example may be referred to as a Ziegler–Natta catalyst, which has allowed large-scale production of petroleum-based polyole?ns since the middle of the 20th century. New polymer synthesis, therefore, will hopefully lead to creation of new polymer materials in the 21st century. This special issue contributed by three groups focuses on recent advances in polymer synthesis methods, which handle the cutting-edge aspects of the advanced technology. The ?rst article by Yokozawa and coworkers contains an overview of the - action control in various condensation polymerizations (polycondensations). Advanced technologies enabled the control of stereochemistry (regio-, g- metrical-, and enantio-selections), chemoselectivity, chain topology, and st- chiometry of monomers, giving a high molecular weight polymer. It has been recognized for a long time, however, that polycondensation is a dif?cult p- cess in controlling the reaction pathway, because the reaction is of step-growth and the reactivity of monomers, oligomers, and polymers are almost the same during the reaction and hence, the molecular weight of polymers and its d- tribution (M /M ) are impossible to regulate. The authors’ group developed w n a new reaction system (chain-growth condensation polymerization), changing the nature of polycondensation from step-growth to chain-growth; namely the propagating chain-end is active, allowing for control of the product molecular weight as well as the distribution.

Handbook of Polymers in Medicine

Handbook of Polymers in Medicine PDF Author: Masoud Mozafari
Publisher: Woodhead Publishing
ISBN: 0128237988
Category : Technology & Engineering
Languages : en
Pages : 802

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Book Description
Handbook of Polymers in Medicine combines core concepts and advanced research on polymers, providing a better understanding of this class of materials in medicine. The book covers all aspects of medical polymers from characteristics and biocompatibility, to the diverse array of applications in medicine. Chapters cover an introduction to polymers in medicine and the challenges associated with biocompatibility in human tissue, polyurethane and supramolecular polymers and their specific applications in medicine, from tissue regeneration to orthopedic surgery and cancer therapeutics. This book offers an interdisciplinary approach that will appeal to researchers in a range of disciplines, including biomedical engineering, materials science, chemistry, pharmacology and translational medicine. The book will also make a useful reference for clinicians and those in medical fields who are interested in materials for medical applications, as well as R&D groups involved in medical device design. - Systematically covers individual polymer classes, from characteristics and biocompatibility to applications in biomedicine - Covers a broad range of applications in medicine, such as cardiac tissue engineering, targeted drug delivery, dentistry, and more - Provides an interdisciplinary review of polymers in medicine, allowing advanced students and experienced researchers in a range of biomedical and clinical fields to learn more about this fast-evolving area

The New Frontiers of Organic and Composite Nanotechnology

The New Frontiers of Organic and Composite Nanotechnology PDF Author: Victor Erokhin
Publisher: Elsevier
ISBN: 0080554075
Category : Technology & Engineering
Languages : en
Pages : 505

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Book Description
The New Frontiers of Organic and Composite Nanotechnology is an attempt to illustrate current status of modern nanotechnology. The book is divided into 3 main sections, introduction and conclusion. The introduction describes general questions of the problem and main lines of the research activities. In the first section methods of the nanostructures construction are described. Second section is dedicated to the Structure-property relationship. Special attention is paid to the description of the most powerful experimental methods and tools used in nanotechnology, such as probe microscopies, spectroscopied, and scattering methods, including the utilization of synchrotron radiation facilities. The third section describes the applications of nanotechnology in electronics, biotechnology and diagnostics. Conclusion part presents a summary of the status of works in this area and gives some perspectives of the further development. - Reference to practically all original works with essential results, that resulted in the development of nanotechnology - Coherent group of well-known authors in the field of nanotechnology - Book spans topics applicable for both the didactic and research

New Frontiers and Applications of Synthetic Biology

New Frontiers and Applications of Synthetic Biology PDF Author: Vijai Singh
Publisher: Academic Press
ISBN: 0323859860
Category : Science
Languages : en
Pages : 487

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Book Description
New Frontiers and Applications of Synthetic Biology presents a collection of chapters from eminent synthetic biologists across the globe who have established experience and expertise working with synthetic biology. This book offers several important areas of synthetic biology which allow us to read and understand easily. It covers the introduction of synthetic biology and design of promoter, new DNA synthesis and sequencing technology, genome assembly, minimal cells, small synthetic RNA, directed evolution, protein engineering, computational tools, de novo synthesis, phage engineering, a sensor for microorganisms, next-generation diagnostic tools, CRISPR-Cas systems, and more. This book is a good source for not only researchers in designing synthetic biology, but also for researchers, students, synthetic biologists, metabolic engineers, genome engineers, clinicians, industrialists, stakeholders and policymakers interested in harnessing the potential of synthetic biology in many areas. - Offers basic understanding and knowledge in several aspects of synthetic biology - Covers state-of-the-art tools and technologies of synthetic biology, including promoter design, DNA synthesis, DNA sequencing, genome design, directed evolution, protein engineering, computational tools, phage design, CRISPR-Cas systems, and more - Discusses the applications of synthetic biology for smart drugs, vaccines, therapeutics, drug discovery, self-assembled materials, cell free systems, microfluidics, and more

Flow Chemistry

Flow Chemistry PDF Author: Santiago V Luis
Publisher: Royal Society of Chemistry
ISBN: 1788018931
Category : Science
Languages : en
Pages : 560

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Book Description
Historically pharmaceutical and fine chemical products have been synthesised using batch methods, but increasingly chemists are looking towards flow chemistry as a greener and more efficient alternative. In flow chemistry reactions are performed in a reactor with the reactants pumped through it. It has the benefit of being easily scaled up and it is straightforward to integrate synthesis, workup and analysis into one system. Flow chemistry is considered a greener alternative to batch chemistry because it is easier to control and minimise hazardous intermediates and by-products. There is significant interest in the use of flow chemistry both in the lab and on an industrial scale. Flow Chemistry provides an update on recent advances that have been made in the field. Particular emphasis is given to the new integrated approaches that bring together several elements to implement flow processes as a regular green chemistry tool for the chemical industries. With chapter contributions from several well-known experts in the field, this book is a valuable resource for researchers working in green chemistry and synthesis, chemical engineers and industrial chemists working in the pharmaceutical and fine chemicals industries.

Frontiers in Polymer Science

Frontiers in Polymer Science PDF Author:
Publisher: Steinkopff
ISBN: 9783662157152
Category : Technology & Engineering
Languages : en
Pages : 191

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Book Description


Silicon Polymers

Silicon Polymers PDF Author: Aziz M. Muzafarov
Publisher: Springer
ISBN: 3642160484
Category : Technology & Engineering
Languages : en
Pages : 242

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Book Description
Modern Synthetic and Application Aspects of Polysilanes: An Underestimated Class of Materials?, by A. Feigl, A. Bockholt, J. Weis, and B. Rieger; * Conjugated Organosilicon Materials for Organic Electronics and Photonics, by Sergei A. Ponomarenko and Stephan Kirchmeyer; * Polycarbosilanes Based on Silicon-Carbon Cyclic Monomers, by E.Sh. Finkelshtein, N.V. Ushakov, and M.L. Gringolts; * New Synthetic Strategies for Structured Silicones Using B(C6F5)3, by Michael A. Brook, John B. Grande, and François Ganachaud; * Polyhedral Oligomeric Silsesquioxanes with Controlled Structure: Formation and Application in New Si-Based Polymer Systems, by Yusuke Kawakami, Yuriko Kakihana, Akio Miyazato, Seiji Tateyama, and Md. Asadul Hoque;

Shape-Memory Polymers

Shape-Memory Polymers PDF Author: Andreas Lendlein
Publisher: Springer
ISBN: 3642123597
Category : Technology & Engineering
Languages : en
Pages : 218

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Book Description
Table of Contents -Shape-Memory Polymers and Shape-Changing Polymers By M. Behl, J. Zotzmann, and A. Lendlein -Shape-Memory Polymer Composites By Samy A. Madbouly and Andreas Lendlein -Characterization Methods for Shape-Memory Polymers By W. Wagermaier, K. Kratz, M. Heuchel, and A. Lendlein -Shape-Memory Polymers for Biomedical Applications By Christopher M. Yakacki and Ken Gall -Controlled Drug Release from Biodegradable Shape-Memory Polymers By ChristianWischke, Axel T. Neffe, and Andreas Lendlein

Photoresponsive Polymers II

Photoresponsive Polymers II PDF Author: Seth Marder
Publisher: Springer Science & Business Media
ISBN: 3540694528
Category : Technology & Engineering
Languages : en
Pages : 217

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Book Description
see table of contents