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Water sorption in polyamide–imide films and its effect on dielectric loss
Author(s) -
Tchangai T.,
Segui Y.,
Doukkali K.
Publication year - 1989
Publication title -
journal of applied polymer science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.575
H-Index - 166
eISSN - 1097-4628
pISSN - 0021-8995
DOI - 10.1002/app.1989.070380212
Subject(s) - kapton , sorption , polyamide , dielectric , imide , materials science , diffusion , dielectric loss , polymer chemistry , kinetics , hydrothermal circulation , chemical engineering , polyimide , composite material , chemistry , organic chemistry , thermodynamics , layer (electronics) , physics , optoelectronics , adsorption , quantum mechanics , engineering
Water sorption and diffusion has been measured in polyamide–imide over a range of temperature and relative humidities. The results are compared to those obtained on Kapton and discussed in terms of chemical differences between these two materials. Changes in dielectric loss during hydrothermal aging under 85°C and 85% RH have been measured. These changes are correlated to the water sorption kinetics.