Polymerization of Heterocycles (Ring Opening) PDF Download
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Author: S. Penczek
Publisher: Elsevier
ISBN: 1483147770
Category : Science
Languages : en
Pages : 133
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Book Description
Polymerization of Heterocycles (Ring Opening) is a collection of papers presented at the International Symposium on Polymerization of Heterocycles (Ring-Opening) held in Warsaw, Poland on June 23-25, 1975. The first paper describes the developments and physical meaning of ion pairs and higher ionic aggregates. Another paper explains the process of obtaining linear polymers, containing rings in the main chain. The book interprets the various behaviors of polymers that can result in high optical yields of stereoelectivity ratios equal to 8. The text then discusses future trends in aldehyde and carbonyl polymerization, including some problem areas pertaining to failures to homopolymerize or copolymerize tetrachloroethylene oxide. Another paper reviews the elemental reactions of selected combinations of copolymerization; the next paper discuses aspects of the mechanism of nucleophilic opening of epoxide rings through studies of certain kinetics. The book then analyzes the ability of lactams to undergo ring-opening polymerization, which mainly depends on the ring size and on the substitution and presence of heteroatoms in the lactam ring itself. The text also discusses the preparation, properties, and applications of the heterochain polymers in medicine or biologically active materials. The book can provide useful information for biochemists, researchers dealing with inorganic and organic compounds, and scientists working in the fields of chemistry such as synthetic chemistry, as well as polymer engineering.
Author: S. Penczek
Publisher: Elsevier
ISBN: 1483147770
Category : Science
Languages : en
Pages : 133
Get Book Here
Book Description
Polymerization of Heterocycles (Ring Opening) is a collection of papers presented at the International Symposium on Polymerization of Heterocycles (Ring-Opening) held in Warsaw, Poland on June 23-25, 1975. The first paper describes the developments and physical meaning of ion pairs and higher ionic aggregates. Another paper explains the process of obtaining linear polymers, containing rings in the main chain. The book interprets the various behaviors of polymers that can result in high optical yields of stereoelectivity ratios equal to 8. The text then discusses future trends in aldehyde and carbonyl polymerization, including some problem areas pertaining to failures to homopolymerize or copolymerize tetrachloroethylene oxide. Another paper reviews the elemental reactions of selected combinations of copolymerization; the next paper discuses aspects of the mechanism of nucleophilic opening of epoxide rings through studies of certain kinetics. The book then analyzes the ability of lactams to undergo ring-opening polymerization, which mainly depends on the ring size and on the substitution and presence of heteroatoms in the lactam ring itself. The text also discusses the preparation, properties, and applications of the heterochain polymers in medicine or biologically active materials. The book can provide useful information for biochemists, researchers dealing with inorganic and organic compounds, and scientists working in the fields of chemistry such as synthetic chemistry, as well as polymer engineering.
Author: Stanislaw Penczek
Publisher: Springer
ISBN: 9783662152584
Category : Technology & Engineering
Languages : en
Pages : 317
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Book Description
Author: J. A. Semlyen
Publisher: Springer Science & Business Media
ISBN: 0412830906
Category : Science
Languages : en
Pages : 804
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Book Description
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: Philippe Dubois
Publisher: John Wiley & Sons
ISBN: 3527319530
Category : Technology & Engineering
Languages : en
Pages : 427
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Book Description
This comprehensive, truly one-stop reference discusses monomers, methods, stereochemistry, industrial applications and more. Chapters written by internationally acclaimed experts in their respective fields cover both basic principles and up-to-date information, ranging from the controlled ring-opening polymerization methods to polymer materials of industrial interest. All main classes of monomers including heterocyclics, cyclic olefins and alkynes, and cycloalkanes, are discussed separately as well as their specificities regarding the ring-opening polymerization techniques, the mechanisms, the degree of control, the properties of the related polymers and their applications. The two last chapters are devoted to the implementation of green chemistry in ring-opening polymerization processes. Of much interest to chemists in academia and industry.
Author: Shu-Li You
Publisher: John Wiley & Sons
ISBN: 3527338519
Category : Science
Languages : en
Pages : 422
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Book Description
The first comprehensive account of the rapidly growing field of asymmetric dearomatization reactions with a focus on catalytic methods. It introduces the concept of dearomatization and describes recent progress in asymmetric reaction procedures with different catalyst systems, such as organocatalysts, transition metal catalysts, and enzymes. Chapters on dearomatizations of electron-deficient aromatic rings, dearomatization reactions via transition metal-catalyzed cross-couplings as well as dearomatization strategies in the synthesis of complex natural products are also included. Written by pioneers in the field, this is a highly valuable source of information not only for professional synthetic chemists in academia and industry but also for all those are interested in asymmetric methodologies and organic synthesis in general.
Author: Alan R. Katritzky
Publisher: Elsevier
ISBN: 1483293424
Category : Science
Languages : en
Pages : 568
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Book Description
Provides a one-volume overall picture of the largest of the classical divisions of organic chemistry, suitable for the graduate or advanced undergraduate student, as well as for research workers, both specialists in the field and those engaged in another discipline and requiring knowledge of heterocyclic chemistry. It represents Volume 9 of Comprehensive Heterocyclic Chemistry and utilizes the general chapters which appear in the 8-volume work. The highly systematic coverage given to the subject makes this the most authoritative one-volume account of modern heterocyclic chemistry available.
Author: Stanisław Penczek
Publisher:
ISBN:
Category :
Languages : en
Pages : 156
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Book Description
Author: Krzysztof Matyjaszewski
Publisher: John Wiley & Sons
ISBN: 9783527324927
Category : Science
Languages : en
Pages : 640
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Book Description
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: Vishnu Ji Ram
Publisher: Elsevier
ISBN: 0081011911
Category : Science
Languages : en
Pages : 504
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Book Description
Heterocycles are ubiquitously present in nature and occupy a unique place in organic chemistry as they are part of the DNA and haemoglobin that make life possible. The Chemistry of Heterocycles covers an introduction to the topic, followed by a chapter on the nomenclature of all classes of isolated, fused and polycyclic heterocycles. The third chapter delineates the highly strained three membered N,O and S containing aromatic and non-aromatic heterocycles with one and more than one similar and dissimilar heteroatom. The four-membered heterocycles are abundantly present in various natural and synthetic products of pharmacological importance. This chapter describes the natural abundance, synthesis, chemical reactivity, structural features and their medicinal importance. This class of compounds are present as sub-structures in penicillin and cytotoxic Taxol. Lastly, a chapter on the natural abundance, synthesis, chemical reactivity and pharmacological importance of 5-membered heterocycles with N,O,S heteroatom is covered. The chemistry of heterocycles with mixed heteroatom such as, N-S, N-O, N-S etc. is also described. - Gives in-depth, clear information about various systems of nomenclature along with widely acceptable IUPAC system for naming various classes of heterocycles - Provides complete information about natural occurrences, synthesis, chemical reactivity, pharmacological importance of heterocycles and their application in material science - Highly relevant for graduate students and researchers, providing updated information about various isolated and fused N,O and,S containing heterocycles
Author: Galal H. Elgemeie
Publisher: Elsevier
ISBN: 0128221828
Category : Science
Languages : en
Pages : 523
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Book Description
N-Sulfonated-N-Heterocycles covers the synthesis, chemistry and biological applications of these compounds, focusing on pioneering synthetic approaches, mechanistic insights and their limitations, as well as recent advances in this field. The synthesis of some of N-sulfonated N-heterocycles and their transformation to other useful cyclic and acyclic compounds are discussed, as well as their uses as useful intermediates in the preparation of polymeric and medicinal materials. This book includes detailed methods and protocols, and the focus on applications makes this resource an essential guide for all researchers in the area of organic, medicinal and polymeric synthetic study. - Reviews the use of N-sulfonated N-heterocycles as important precursors for the synthesis of biologically active compounds - Includes information on synthetically useful transformations of N-sulfonated N-heterocycles - Covers a wide synthetic methods used for an important branch of heterocycles and their biological evaluation in detail - Features over 500 schemes to illustrate different synthetic pathways and reactions of N-sulfonated N-heterocycles
