LI Lei, XU Li, WANG Yuxin. STUDY ON THE PREPARATION AND PROPERTIES OF SULFONATED PHENOLPHTHALEIN POLY(ETHER SULFONE) MEMBRANES[J]. Acta Polymerica Sinica, 2003,(4):465-468.
LI Lei, XU Li, WANG Yuxin. STUDY ON THE PREPARATION AND PROPERTIES OF SULFONATED PHENOLPHTHALEIN POLY(ETHER SULFONE) MEMBRANES[J]. Acta Polymerica Sinica, 2003,(4):465-468.DOI:
Sulfonated phenolphthalein poly(ether sulfone) (SPES-C) with various sulfonation degree were synthesized by reaction of PES-C with sulfonic acid as sulfonating agent and solvent.Their proton conductivity and methanol permeability as a function of the degree of sulfonation were investigated.For 70.21% degree of sulfonation
proton conductivity was 3.45 x 10-2 S/cm at 100℃
which is closed to or superior to that of NationοR 115 membrane at the same conditions (4.19×10-2 S/cm).Methanol permeability of SPES-C was considerable smaller than that of Nation国 115 membrane.Because of their high conductivity and low methanol permeabihty
SPES- C membranes appear to be excellent candidate for use in DMFC applications.