Crosslinking and Scission in Polymers

Author: O. Güven
Publisher: Springer Science & Business Media
ISBN: 9400919247
Category : Technology & Engineering
Languages : en
Pages : 259

Book Description
MOLECULAR WEIGHr CHANGES AND NE1WORK FORMATION BY SCISSION AND CROSSUNKING A. Charlesby 1 Introduction Main Chain Scission of Polymers ____________________________ _ ________________________ _ 1 Crosslinking ______ . . . . . . . . . . . . . . . . . . . . . . _ . . . . . . . _ . . . . . . . . . . . . . . . . _ . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . __ . . . . _ . . . . . . . . . . . _ . . . . . . . . ___ . . _. __ . . . . _. _. _____ . _____ . _ 4 5 Random Crosslinking . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . _ . . . . . . . _ . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Enhanced Crosslinking . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 Other Forms of Crosslinking . . . . . . . . . . . . . _ . . . . . . . . . . . . . . . . . _ . . . . . . . . . . . . . . . _ . . . . . . . . . . . . . . . . _. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 Combined Crosslinking and Scission ___________ _________________ ______ _ ______________ . _. _. 11 Antioxidants . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 Fillers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . _ . . . . . . . . . . __ . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . _ . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . __ . . . 12 Crosslinking of Polymers in Solution ________________________________ . . ______________ . . . . __ 12 References _. __ _ 13 HIGH ENERGY RADIATION-AND UV UGHr-INDUCED CROSSLINKING AND CHAIN SCISSION w. Schnabel Introduction 15 Importance of Radiation-Induced Crosslinking and Main-Chain Scission in Linear Polymers ___________________________ _________________ 15 TYPes of Radiation and Radiation Sources _. ___________________________ . . . . . . . . . _ . . . . . . _ . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . _ . . . . . . . . . . _. _. _ . . __ . . . 16 Absorption of Radiation . . _ . . . . _ . . . . . . _ . . _ . . __ . _ . . . . . . . . ____ . . . _ . . . . . . . . . . . . __ . . . . _ . . . . . . . . . _ . . . . _ . . . . . . _ . . . _ . . _ . . . . . . . . . . . . . . . . . . . . . _ . . . . . __ . . . . . . . . . . . _ . . . . . _____ . . . . . . . . . ___ . . . 16 General Aspects Concerning XL and CS in Linear Polymers ______________________ . _________ . _____ . _____ 22 Random and Specific Site Attacks . . . . . . . _. ____ . _ . . . _ . . . . . . . . . . __ . . . . . . . . . . . . . _ . . ___ . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . _ . . . . . _ . . . . . __ . . . . _ . . . . . . _ . . . . __ . ___ . . . . . . . . . . __ . . _ 22 Detection of XL and CS . . . _. _ . . . . . . . . . . . . . . . _. __ . . . _ . . . . . . . . . . . . ___ . . . . . . . __ . . . _ . . . _ . . . . . . . . ____ . . . . . . . . . . . . . . . . . . _ . . . . _ . . . . . _ . . . . . . . . . . . . . . . . . . . . __ . . . . . _ . . . . _ . . . . . _. _ . . . . _ . . . . . . . 22 Simultaneous XL and CS Mechanisms 25 Ion Beam-Induced Radiation Effects In Linear Polymers ____________________________________________________ .

Bridging the Centuries with SAMPE's Materials and Processes Technology

Author: Steve Loud
Publisher: Taylor & Francis
ISBN: 0938994867
Category : Technology & Engineering
Languages : en
Pages : 2381

Book Description

Fire Retardancy of Polymeric Materials

Author: Arthur F. Grand
Publisher: CRC Press
ISBN: 9781420027099
Category : Technology & Engineering
Languages : en
Pages : 600

Book Description
This volume addresses the state of the art in fire retardancy studies and the need for fire retardant chemicals and fire-retarded polymers, while considering the interrelationship among polymer degradation, fire retardant efficacy, fire testing and environmental concerns. The work examines the principles of polymer science with respect to fire retardancy.

Scission

Author: Tim Winton
Publisher: Penguin Group Australia
ISBN: 1742537006
Category : Fiction
Languages : en
Pages : 168

Book Description
Scission, Tim Winton's first collection of short fiction, contains spare, jagged stories in which people struggle with change and disintegration. These startling stories deal with men, women and children whose lives are coming apart and whose hearts are breaking. Honest, beautiful, shattering tales - vintage Winton.

Comprehensive Organic Functional Group Transformations

Author: Alan R. Katritzky
Publisher: Elsevier
ISBN: 9780080423227
Category : Mathematics
Languages : en
Pages : 1452

Book Description
This Volume covers the formation of carbon-carbon single-, double- and triple bonds by substitution and addition reactions as well as by various rearrangements. The formation of carbon-carbon multiple bonds by elimination and condensation procedures is fully documented. In addition the synthesis of carbon-hydrogen bonds principally by substitution and addition reactions is featured as is the preparation of a wide variety of carbon-centred anions, cations and radicals.

Low Energy Nuclear Dynamics: Eps Xv Nuclear Physics Divisional Conference

Author: Yu Ts Oganessian
Publisher: World Scientific
ISBN: 9814548758
Category :
Languages : en
Pages : 690

Book Description
The proceedings of the conference include recent results of experimental and theoretical research on the following topics: reaction dynamics, fusion-fission phenomena, neutron physics, deformed shells, nuclear spectroscopy, and exotic nuclei.

Oxydative Ageing of Polymers

Author: Jacques Verdu
Publisher: John Wiley & Sons
ISBN: 1118563190
Category : Technology & Engineering
Languages : en
Pages : 259

Book Description
This book aims to rehabilitate kinetic modeling in the domain of polymer ageing, where it has been almost abandoned by the research community. Kinetic modeling is a key step for lifetime prediction, a crucial problem in many industrial domains in which needs cannot be satisfied by the common empirical methods. The book proposes a renewed approach of lifetime prediction in polymer oxidative ageing. This approach is based on kinetic models built from relatively simple mechanistic schemes but integrating physical processes (oxygen diffusion and stabilizer transport), and use property (for instance mechanical failure) changes. An important chapter is dedicated to radiation-induced oxidation and its most important applications: radiochemical ageing at low dose rates and photo-chemical ageing under solar radiation. There is also a chapter devoted to the problem of ageing under coupled oxidation and mechanical loading.

Analytical Pyrolysis of Natural Organic Polymers

Author: S.C. Moldoveanu
Publisher: Elsevier
ISBN: 0128235535
Category : Science
Languages : en
Pages : 642

Book Description
Analytical Pyrolysis of Natural Organic Polymers, Second Edition, Volume 20 describes the methodology of analytical pyrolysis, the results of pyrolysis for a variety of biopolymers, and several practical applications of analytical pyrolysis on natural organic polymers and their composite materials. The book describes the results of pyrolysis for biopolymers and some chemically modified natural organic polymers. In addition, the many applications of analytical pyrolysis are covered in detail, including topics such as polymer detection used in forensic science, structure elucidation of specific polymers, and identification of small molecules present in polymers (anti-oxidants, plasticizers, etc.). - Assembles all essential information on the pyrolysis of natural polymers in one volume, together with the techniques and instrumentation used - Covers advances and developments over the last 20 years, including discussions on the many different types of apparatus commercially available - Includes reference lists in every chapter to guide readers on a path to further study

Degradation of Polymers

Author: R.G. Compton
Publisher: Elsevier
ISBN: 0080868088
Category : Science
Languages : en
Pages : 579

Book Description
Degradation of Polymers

New Nuclear Physics With Advanced Techniques - Proceedings Of The International Conference

Author: Stathis Kossionides
Publisher: World Scientific
ISBN: 9814555371
Category :
Languages : en
Pages : 430

Book Description
The proceedings contain invited papers and contributions which capture the recent advances in technology (beams, detectors, electronics, computing) and emphasize the new frontiers opened up in Nuclear Physics. Results with most of the existing multidetectors, as well as the progress of new developments, were presented. The presentations of EUROGAM, GAMMASPHERE, GASP, DIAMANT, ORION, EDEN, DEMON, the Texas Neutron Ball, the DWARF Ball, INDRA, FOBOS, AMPHORA, MEDEA and the SIS/ESR Particle Ball will also be included. The progress in data collection with the new integrated electronics, as well as transputer farm and network distributed processing, is also presented. Experimental results cover superdeformation, multifragmentation, neutron-rich isotopes, dissipative collisions, cluster states and radioactive beam measurements.