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Titolo:
Absorption of low molecular weight penetrants by a thermoplastic polyimide
Autore:
Goodwin, AA; Whittaker, AK; Jack, KS; Hay, JN; Forsythe, J;
Indirizzi:
Monash Univ, Clayton, Vic 3168, Australia Monash Univ Clayton Vic Australia 3168 Univ, Clayton, Vic 3168, Australia Univ Birmingham, Birmingham B15 2TT, W Midlands, England Univ Birmingham Birmingham W Midlands England B15 2TT W Midlands, England
Titolo Testata:
POLYMER
fascicolo: 19, volume: 41, anno: 2000,
pagine: 7263 - 7271
SICI:
0032-3861(200006)41:19<7263:AOLMWP>2.0.ZU;2-7
Fonte:
ISI
Lingua:
ENG
Soggetto:
POLY(ETHER ETHER KETONE); POLY(METHYL METHACRYLATE); SOLVENT INGRESS; DIFFUSION; POLYMERS; RODS; TEMPERATURE; TRANSPORT; SORPTION; LIQUIDS;
Keywords:
thermoplastic polyimide; diffusion; nuclear magnetic resonance;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Physical, Chemical & Earth Sciences
Citazioni:
30
Recensione:
Indirizzi per estratti:
Indirizzo: Goodwin, AA Monash Univ, Clayton, Vic 3168, Australia Monash Univ ClaytonVic Australia 3168 n, Vic 3168, Australia
Citazione:
A.A. Goodwin et al., "Absorption of low molecular weight penetrants by a thermoplastic polyimide", POLYMER, 41(19), 2000, pp. 7263-7271

Abstract

The response of a thermoplastic polyimide (TPI) to immersion in a range ofsolvents was investigated by a number of experimental techniques. The kinetics of solvent diffusion were determined by weight uptake and NMR imaging,the effect of absorbed solvent on thermal behaviour was investigated by dynamic mechanical analysis and differential scanning calorimetry and the morphology of TPI exposed to solvent was determined by wide-angle X-ray scattering. The tensile properties of amorphous and crystalline TPI were measuredbefore and after exposure to solvent. Amorphous TPI absorbed significant quantities of some solvents that lowered the T-g, but none were sufficientlyplasticising to induce crystallisation at room temperature. There was a direct correlation between the extent of solvent ingress and the environmental stress cracking behaviour of amorphous TPI. Crystalline TPI absorbed onlysmall quantities of all the solvents used, but showed limited environmental stress cracking resistance. (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 29/09/20 alle ore 07:41:40