Annealing time and temperature effects on sorption properties of dichloromethane in hexafluorobisphenol-A-based polyesters

Authors
Ruvolo, A Boesel, LF Pessan, LA
Citation
A. Ruvolo et al., Annealing time and temperature effects on sorption properties of dichloromethane in hexafluorobisphenol-A-based polyesters, J MACR S PH, B40(1), 2001, pp. 29-39
Citations number
15
Categorie Soggetti
Organic Chemistry/Polymer Science
Journal title
JOURNAL OF MACROMOLECULAR SCIENCE-PHYSICS
ISSN journal
00222348 → ACNP
Volume
B40
Issue
1
Year of publication
2001
Pages
29 - 39
Database
ISI
SICI code
0022-2348(2001)B40:1<29:ATATEO>2.0.ZU;2-H
Abstract
The effects of thermal history on dichloromethane vapor sorption and transp ort properties in two polyesters based on hexafluorobisphenol-A were studie d. Films of the polyesters, aged at room temperature for 1 and 3 years, wer e annealed at temperatures below and above the T-beta value of each sample for different periods of time. Significant changes on the transport and sor ption properties of the materials due to heat treatment were observed and a re correlated to changes in density and free volume of the polymers.