Low-frequency dielectric relaxation of films based on PMMA and polyimide

Authors
Bradulina, LG Gavrilova, ND Vygodskii, YS Matieva, AM
Citation
Lg. Bradulina et al., Low-frequency dielectric relaxation of films based on PMMA and polyimide, VYSO SOED, 41(5), 1999, pp. 901-905
Citations number
10
Categorie Soggetti
Organic Chemistry/Polymer Science
Journal title
VYSOKOMOLEKULYARNYE SOEDINENIYA SERIYA A & SERIYA B
ISSN journal
05075475 → ACNP
Volume
41
Issue
5
Year of publication
1999
Pages
901 - 905
Database
ISI
SICI code
0507-5475(199905)41:5<901:LDROFB>2.0.ZU;2-3
Abstract
The relaxation phenomena in polymer films made of PMMA and polyimide were s tudied by the dielectric method in the frequency range from 20 Hz to 20 kHz and in the temperature range from -50 to +50 degrees C. It was shown that the relaxation behavior in the PMMA-polyimide copolymer is determined by th e relaxation of polyimide, even for the PMMA : polyimide mass ratio = 96 : 4.