Jiabei Zhou, Xianzhu Zhong, Aniruddha Nag, Yang Liu, Kenji Takada and Tatsuo Kaneko
Polym. Chem., 2022,13, 4086-4089
DOI:
10.1039/D2PY00548D,
Communication
Porous structures were formed in polybenzimidazole derivative films by a silica template method, followed by HF etching. As expected, the resulting ultrahigh thermoresistant films showed better elongation properties than did the non-porous films, with renewed strength and hardness. Microscopic analyses revealed that the pores were clearly formed, and craters with swollen edges and hardened surfaces were also observed.