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Cyclic Polymers

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Release : 2012-12-06
Genre : Technology & Engineering
Kind : eBook
Book Rating : 757/5 ( reviews)

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Book Synopsis Cyclic Polymers by : E.R. Semlyen

Download or read book Cyclic Polymers written by E.R. Semlyen. This book was released on 2012-12-06. Available in PDF, EPUB and Kindle. Book excerpt: Synthetic polymers based on long chain molecules have been investigated intensively for over 50 years. They have found important applications as plastics, fibres, rubbers and other materials. The chain molecules may be simple linear structures or they may be branched or cross-linked. During the past decade, sharp fractions of the first synthetic cyclic polymer have been prepared. These fractions of cyclic poly(dimethyl siloxane) consist of ring molecules containing hundreds of skeletal bonds. Some of their properties have been found to be quite different from those of the corresponding linear polymers. Synthetic cyclic polymers, including cyclic polystyrene, have joined the naturally occurring circular DNAs as examples of substantially large ring molecules. This book aims to review current knowledge of cyclic polymers and biological ring macromolecules. In addition, it discusses theories of cyclic macromolecules and describes cyclization processes involving long chain molecules. Since 1865, when Kekule proposed a simple ring structure for benzene, larger and larger ring molecules have been synthesized in the laboratory and discovered in nature. Many more examples are to be expected in the future. In time, large ring molecules should take their proper place alongside long chain molecules as one of the two possible constituent structural units of polymers.

Cyclic Polymers

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Release : 2000-08-31
Genre : Science
Kind : eBook
Book Rating : 906/5 ( reviews)

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Book Synopsis Cyclic Polymers by : J. A. Semlyen

Download or read book Cyclic Polymers written by J. A. Semlyen. This book was released on 2000-08-31. 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.

Cyclic Polymers

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Release : 2007-05-08
Genre : Technology & Engineering
Kind : eBook
Book Rating : 175/5 ( reviews)

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Book Synopsis Cyclic Polymers by : E.R. Semlyen

Download or read book Cyclic Polymers written by E.R. Semlyen. This book was released on 2007-05-08. 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.

Topological Polymer Chemistry: Progress Of Cyclic Polymer In Syntheses, Properties And Functions

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Release : 2012-12-17
Genre : Science
Kind : eBook
Book Rating : 293/5 ( reviews)

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Book Synopsis Topological Polymer Chemistry: Progress Of Cyclic Polymer In Syntheses, Properties And Functions by : Yasuyuki Tezuka

Download or read book Topological Polymer Chemistry: Progress Of Cyclic Polymer In Syntheses, Properties And Functions written by Yasuyuki Tezuka. This book was released on 2012-12-17. Available in PDF, EPUB and Kindle. Book excerpt: There are examples aplenty in the macroscopic world that demonstrate the form of objects directing their functions and properties. On the other hand, the fabrication of extremely small objects having precisely defined structures has only recently become an attractive challenge, which is now opening the door to nanoscience and nanotechnology.In the field of synthetic polymer chemistry, a number of critical breakthroughs have been achieved during the first decade of this century to produce an important class of polymers having a variety of cyclic and multicyclic topologies. These developments now offer unique opportunities in polymer materials design to create unprecedented properties and functions simply based on the form, i.e. topology, of polymer molecules.In this book on topological polymer chemistry, the important developments in this growing area will be collected for the first time, with particular emphasis on new conceptual insights for polymer chemistry and polymer materials. The book will systematically review topological polymer chemistry from basic aspects to practice, and give a broad overview of cyclic polymers covering new synthesis, structure characterization, basic properties/functions and the eventual applications.

Topological Polymer Chemistry

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Author :
Release : 2013
Genre : Mathematics
Kind : eBook
Book Rating : 277/5 ( reviews)

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Book Synopsis Topological Polymer Chemistry by : Yasuyuki Tezuka

Download or read book Topological Polymer Chemistry written by Yasuyuki Tezuka. This book was released on 2013. Available in PDF, EPUB and Kindle. Book excerpt: There are examples aplenty in the macroscopic world that demonstrate the form of objects directing their functions and properties. On the other hand, the fabrication of extremely small objects having precisely defined structures has only recently become an attractive challenge, which is now opening the door to nanoscience and nanotechnology. In the field of synthetic polymer chemistry, a number of critical breakthroughs have been achieved during the first decade of this century to produce an important class of polymers having a variety of cyclic and multicyclic topologies. These developments now offer unique opportunities in polymer materials design to create unprecedented properties and functions simply based on the form, i.e. topology, of polymer molecules. In this book on topological polymer chemistry, the important developments in this growing area will be collected for the first time, with particular emphasis on new conceptual insights for polymer chemistry and polymer materials. The book will systematically review topological polymer chemistry from basic aspects to practice, and give a broad overview of cyclic polymers covering new synthesis, structure characterization, basic properties/functions and the eventual applications.

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