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PVC Degradation and Stabilization

Wypych, George

Editore: ChemTec Publishing, 2008
ISBN 10: 1895198399 / ISBN 13: 9781895198393
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Titolo: PVC Degradation and Stabilization

Casa editrice: ChemTec Publishing

Data di pubblicazione: 2008

Legatura: Hardcover

Condizione libro: New


Brand New, Unread Copy in Perfect Condition. A+ Customer Service! Summary: 1 Chemical Structure of PVC 1.1 Repeat structures and their basic organic chemistry 1.1.1 Bronsted acid source with controllable emission 1.2 Molecular weight and its distribution 1.2.1 Kuhn-Mark-Houwink-Sakurada 1.2.2 Fikentscher K number 1.2.3 Chain length 1.3 Prediction of formation of irregular segments 1.3.1 Ab initio 1.3.2 Monte Carlo 1.4 Irregular segments 1.4.1 Branches 1.4.2 Tertiary chlorine 1.4.3 Unsaturations 1.4.4 Oxygen containing groups Ketochloroallyl groups a- and b-carbonyl groups 1.4.5 Head-to-head structures 1.4.5 Initiator rests 1.4.6 Transfer agent rests 1.4.8 Defects introduced during processing 1.4.9 PVC having increased stability References 2 PVC Manufacture Technology 2.1 Monomer 2.2 Basic Steps of Radical Polymerization 2.2.1 Initiation 2.2.2 Propagation 2.2.3 Termination 2.2.4 Chain transfer to monomer 2.3 Polymerization technology 2.3.1 Suspension 2.3.2 Paste resin manufacturing processes 2.3.3 Bulk 2.3.4 Solution 2.4 Polymerization conditions and PVC properties References 3 PVC Morphology 3.1. Molecular weight of polymer (chain length) 3.2. Configuration and conformation 3.3. Chain folds 3.4. Chain thickness 3.5 Entanglements 3.6 Crystalline structure 3.7 Grain morphology 3.7.1 Stages of morphology development during manufacture Suspension polymerization Paste grades manufacture Bulk polymerization 3.7.2 Effect of morphology on degradation References 4 Principles of Thermal Degradation 4.1 The reasons for polymer instability 4.1.1 Structural defects Branches Tertiary chlorine Unstaturations Oxygen containing groups Head-to-head structures Morphology 4.1.2 Polymerization residue Initiator rests Transfer agent rests Polymerization additives 4.1.3 Metal derivatives Metal chlorides Copper and its oxide 4.1.4 Hydrogen chloride 14 4.1.5 Impurities 4.1.6 Shear 4.1.7 Temperature 4.1.8 Surrounding atmosphere 4.1.9 Additives 4.2 Mechanisms of thermal degradation 4.2.1 Molecular mechanism 4.2.2 Amer-Shapiro mechanism 4.2.3 Six-center concerted mechanism 4.2.4 Activation enthalpy 4.2.5 Radical-chain theory 4.2.6 Ionic 4.2.7 Polaron 4.2.8 Degenerated branching 4.2.9 Transition state theory 4.2.10 Recapitulation 4.3 Kinetics 4.3.1 Initiation 4.3.2 Propagation 4.3.3 Termination 4.4 Results of thermal degradation 4.4.1 Volatiles 4.4.2 Weight loss 4.4.3 Char formation 4.4.4 Ash content 4.4.5 Thermal lifetime 4.4.6 Optical properties Color change Extinction coefficient Absorbance 4.4.7 Molecular weight 4.4.8 Mechanical properties 4.4.9 Electric properties 4.5 Effect of additives 4.5.1 Blend polymers ABS Chlorinated polyethylene, CPE Epoxidized butadiene/styrene block copolym. Codice inventario libreria ABE_book_new_1895198399

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Riassunto: With the global renewal of interest in PVC, this book is well timed, considering that PVC stabilization is the most important aspect of its formulation and performance.

Only four books have been published on PVC degradation and stabilization (the last one in the 1980s), and two of them are by the author of this book.

Separate chapters review information on chemical structure, PVC manufacturing technology, morphology, degradation by thermal energy, and UV, gamma, and other forms of radiation, mechanodegradation, chemical degradation, analytic methods used in studying of degradative and stabilization processes, stabilization, and effect of PVC and its additives on health, safety and environment.

This book contains analysis of all essential papers published until recently on the above subject. It either locates the answers to relevant questions and offers solutions or gives references in which such answers can be found.

PVC Degradation and Stabilization is must have for chemists, engineers, scientists, university teachers and students, designers, material scientists, environmental chemists, and lawyers who work with polyvinyl chloride and its additives or have any interest in these products. This book is the one authoritative source on the subject.

ÀThe first book on this subject since the 1980s. ÀShows new trends and directions in the manufacture and use of polyvinyl chloride (PVC). ÀHelps lead research and development of successful and responsible application of additives in PVC processing and applications.

L'autore: George Wypych has a Ph.D. in chemical engineering. His professional expertise includes both university teaching (full professor) and research and development. He has published 18 books: PVC Plastisols, (University Press); Polyvinylchloride Degradation, (Elsevier); Polyvinylchloride Stabilization, (Elsevier); Polymer Modified Textile materials, (Wiley & Sons); Handbook of Material Weathering, 1st, 2nd, 3rd and 4th Editions, (ChemTec Publishing); Handbook of Fillers, 1st, 2nd and 3rd Editions, (ChemTec Publishing); Recycling of PVC, (ChemTec Publishing); Weathering of Plastics. Testing to Mirror Real Life Performance, (Plastics Design Library), Handbook of Solvents, Handbook of Plasticizers, 1st and 2nd Editions, Handbook of Antistatics, Handbook of Material Biodegradation, Biodeterioration and Biostabilation, Handbook of Antiblocking, Release and Slip Additives 1st and 2nd Editions, Handbook of UV Degradation and Stabilization, PVC Degradation & Stabilization, The PVC Formulary, Atlas of Material Damage, and Handbook of Polymers (all by ChemTec Publishing), 47 scientific papers, and he has obtained 16 patents. He specializes in polymer additives, polymer processing and formulation, material durability and the development of sealants and coatings. He is included in the Dictionary of International Biography, Who's Who in Plastics and Polymers, Who's Who in Engineering, and was selected International Man of the Year 1996-1997 in recognition for his services to education.

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