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Titolo:
Enthalpic relaxation in semi-crystalline PEEK
Autore:
Atkinson, JR; Hay, JN; Jenkins, MJ;
Indirizzi:
Univ Birmingham, Birmingham B15 2TT, W Midlands, England Univ Birmingham Birmingham W Midlands England B15 2TT W Midlands, England
Titolo Testata:
POLYMER
fascicolo: 3, volume: 43, anno: 2002,
pagine: 731 - 735
SICI:
0032-3861(200202)43:3<731:ERISP>2.0.ZU;2-P
Fonte:
ISI
Lingua:
ENG
Soggetto:
DIFFERENTIAL SCANNING CALORIMETRY; POLY(METHYL METHACRYLATE); POLYVINYL METHYL-ETHER); GLASS-TRANSITION; POLYMER BLENDS; TEMPERATURE;
Keywords:
enthalpic relaxation; amorphous poly(ether ether ketone); semi-crystalline poly(ether ether ketone);
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Physical, Chemical & Earth Sciences
Citazioni:
22
Recensione:
Indirizzi per estratti:
Indirizzo: Jenkins, MJ Univ Birmingham, Birmingham B15 2TT, W Midlands, England Univ Birmingham Birmingham W Midlands England B15 2TT England
Citazione:
J.R. Atkinson et al., "Enthalpic relaxation in semi-crystalline PEEK", POLYMER, 43(3), 2002, pp. 731-735

Abstract

The effect of crystallisation on the glass transition temperature and enthalpic relaxation in poly(ether ether ketone) (PEEK) has been investigated. The increase in glass transition temperature and the activation enthalpy ofageing is explained in terms of the amorphous phase being constrained by the crystallites. The extent of enthalpic relaxation with time has been analysed in terms of the Cowie-Ferguson model and the beta value was found to be dependent on both temperature and the crystalline morphology, changes in the co-operativity of the relaxations are used to explain this observation. (C) 2001 Elsevier Science Ltd. All rights reserved.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 12/07/20 alle ore 06:43:06