Hydroscopicity and Dielectric Properties of Polyimide Containing Biphenyl and Bis-Benzimidazole Rings
Year: 2014
Type: article
Abstract: A kind of Polyimide films (PI films) containing biphenyl and bis-benzimidazole rings were prepared from the its precursor Polyamic acid (PAA) solution synthesized by aromatic diamine containing biphenyl and bis-benzimidazole rings with different commercial aromatic dianhydrides. The PI films exhibited excellent hydrophobicity with the contact angle of higher than 90o and the hydroscopicity are lower than 1%. The PI films also have great dielectric properties of the dielectric constant ranges from 2.10 to 2.94 under the voltage frequency within 1 to 106HZ.
Source: Applied Mechanics and Materials
Authors: Ying Tao Chen, Hong Xu Lu, Qing Hua Zhang
Institution: Donghua University
Language: English
Subfield: Polymers and Plastics
Field: Materials Science
Domain: Physical Sciences
Open Access status: hybrid
OpenAlex ID: W2025593513