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Titolo:
Thermo-oxidation of polyterpenes: influence of the physical state
Autore:
Binet, ML; Commereuc, S; Verney, V;
Indirizzi:
Univ Blaise Pascal, Photochim Mol & Macromol Lab, CNRS, UMR 6505, F-63177 Clermont Ferrand, France Univ Blaise Pascal Clermont Ferrand France F-63177 rmont Ferrand, France ENS Chim Clermont Ferrand, F-63177 Clermont Ferrand, France ENS Chim Clermont Ferrand Clermont Ferrand France F-63177 errand, France
Titolo Testata:
EUROPEAN POLYMER JOURNAL
fascicolo: 10, volume: 36, anno: 2000,
pagine: 2133 - 2142
SICI:
0014-3057(200010)36:10<2133:TOPIOT>2.0.ZU;2-N
Fonte:
ISI
Lingua:
ENG
Soggetto:
CATIONIC POLYMERIZATION; ALPHA-PINENE; ELASTOMERIC MATERIALS; BINARY CATALYSTS; PHOTO-OXIDATION; TERPENE RESINS; PHOTOOXIDATION; MISCIBILITY; BLENDS; POLYPROPYLENE;
Keywords:
polyterpenes; thermo-oxidation; photo-oxidation; FTIR spectroscopy; differential scanning calorimetry;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Physical, Chemical & Earth Sciences
Citazioni:
30
Recensione:
Indirizzi per estratti:
Indirizzo: Commereuc, S Univ Blaise Pascal, Photochim Mol & Macromol Lab, CNRS, UMR 6505, F-63177 Clermont Ferrand, France Univ Blaise Pascal Clermont FerrandFrance F-63177 , France
Citazione:
M.L. Binet et al., "Thermo-oxidation of polyterpenes: influence of the physical state", EUR POLYM J, 36(10), 2000, pp. 2133-2142

Abstract

The thermo-oxidation of terpene resins has been investigated with the aim of systematically comparing their behaviours through photo-ageing. The examination of the chemical evolution of the poly(alpha-pinene) and poly(beta-pinene) upon thermal-ageing shows that the observed processes are similar tothose previously described for the photooxidation of these dienic polymers. But, ill contrast to photo-ageing, the thermo-oxidative kinetics of the two selected polypinenes are quite different. Moreover, our experimental results give evidence that the kinetics of thermo-oxidative degradation drastically depends on the physical properties of the medium. Consequently, the difference between the experimental temperature and the glass transition temperature of the resin is a quite dominant factor when oxidation proceeds inthe vicinity of the glass transition. (C) 2000 Elsevier Science Ltd. All rights reserved.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 25/11/20 alle ore 07:33:15