𝔖 Bobbio Scriptorium
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Water sorption in polyamide–imide films and its effect on dielectric loss

✍ Scribed by T. Tchangai; Y. Segui; K. Doukkali

Book ID
101585067
Publisher
John Wiley and Sons
Year
1989
Tongue
English
Weight
373 KB
Volume
38
Category
Article
ISSN
0021-8995

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✦ Synopsis

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.

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✍ Jongchul Seo; Wonbong Jang; Haksoo Han 📂 Article 📅 2009 🏛 John Wiley and Sons 🌐 English ⚖ 631 KB

## Abstract Two series of semi‐interpenetrating polymer network (semi‐IPN) composite films, PEI/bismaleimide (UTBM) and PEI/fluorinated BMI (UTFBM) were prepared using a thermoplastic PEI and two different crosslinkable imide moieties. The effects of chemical structure and content of crosslinkable