A new supramolecular sulfonated polyimide for use in proton exchange membranes for fuel cells

作者:Ye Yun Sheng; Huang Yao Jheng; Cheng Chih Chia; Chang Feng Chih*
来源:Chemical Communications, 2010, 46(40): 7554-7556.
DOI:10.1039/c0cc02325f

摘要

Uracil-terminated telechelic sulfonated polyimides (SPI-U) were transformed into noncovalent network membranes through biocomplementary hydrogen bonding recognition in the presence of an adenine-based crosslinking agent. SPI-U membrane exhibited dramatically improved methanol permeability, oxidative stability, proton conductivity, and selectivity relative to those of the standard SPI.