This study was supported by the National Natural Science Foundation of China (No. 50373005);the Chinese National Programs for High Technology Research and Development ("863" plan, No. 2003AA33G030).
Sulfonated poly(phthalazinone)s (SPPENK, SPPESK and SPPBEK) were prepared by direct polymerization reaction from sulfonated monomers. The novel acid-base membranes were composed of sulfonated polymers as the acidi...