Feng Wang, Jianke Li, Tianlu Chen
1999
Citations
0
Influential Citations
52
Citations
Journal
Polymer
Abstract
Abstract Poly(ether ether ketone) with high content of sodium sulfonate groups prepared directly from 5,5′-carbonylbis(2-fluorobenzene sulfonate), 4,4′-difluorobenzophenone and phenolphthalein via aromatic nucleophilic substitution reaction. The polymer showed excellent thermal stability, high permeability of water vapour, high permselectivity of water vapour over nitrogen, and high permselectivity of anions