STRUCTURAL RELAXATION OF GLASS-FORMING POLYMERS BASED ON AN EQUATION FOR CONFIGURATIONAL ENTROPY .3. ON THE STATES ATTAINED AT INFINITE TIME IN THE STRUCTURAL RELAXATION PROCESS - RESULTS ON POLY(ETHER IMIDE)

Authors
RIBELLES JLG PRADAS MM GARAYO AV COLOMER FR ESTELLES JM DUENAS JMM
Citation
Jlg. Ribelles et al., STRUCTURAL RELAXATION OF GLASS-FORMING POLYMERS BASED ON AN EQUATION FOR CONFIGURATIONAL ENTROPY .3. ON THE STATES ATTAINED AT INFINITE TIME IN THE STRUCTURAL RELAXATION PROCESS - RESULTS ON POLY(ETHER IMIDE), Polymer, 38(4), 1997, pp. 963-969
Citations number
38
Categorie Soggetti
Polymer Sciences
Journal title
Polymer → ACNP
ISSN journal
00323861
Volume
38
Issue
4
Year of publication
1997
Pages
963 - 969
Database
ISI
SICI code
0032-3861(1997)38:4<963:SROGPB>2.0.ZU;2-5
Abstract
The aim of this paper is to discuss the limit state attained at infini te time in the structural relaxation process. This state usually is id entified with the equilibrium state extrapolated from the experimental data obtained at temperatures above the glass transition. The analysi s is conducted with the help of a phenomenological model with fitting parameters, based on an equation for the evolution of the configuratio nal entropy during the process. The model avoids the use of the fictiv e temperature, which makes it easier to introduce a different hypothes is on the limit states of the process. (C) 1997 Elsevier Science Ltd.