Synthesis and characterization of sulfonated poly(arylene ether) containing triphenyl moieties for proton exchange membrane;

Novel sulfonated poly(arylene ether) containing triphenyl moieties as polymer electrolytes for fuel cell application was successfully synthesized.

Partially-fluorinated sulfonated poly(arylene ether) as proton exchange membrane for fuel cell appliaction was successfully synthesized.

The sulfonated polyaryletherketoneketone(S PEKK) was synthesized from cross linked polyaryletherketoneketone with 20% fuming sulfuric acid, and then it was used as catalyst in esterification of fumaric acid and methyl alcohol.

The sulfonated polyaryletherketoneketone(S-PKKK) was synthesized from cross-linking polyaryletherketoneketone with 20% fuming sulphuric acid, and then it was use as catalyst in esterification of phenylacetic acid and β-phenethyl alcohol.

The sulfonated polyaryletherketoneketone was synthesized by reaction of crosslinking polyaryletherketoneketone with 20% fuming sulphuric acid as sulfonating agent and used to catalyze the reaction of malic anhydride with 2ethylhexyl alcohol.

Through lots of trial experiments, our research team found a new approach to separate sPPESK which-we call precipitation separation method.

Because of its thermo stability、chemical stability and superior electric properties, sulfonated poly(arylene ether ketone)s are considered to be the best substitute materials of Nafion? membranes.

A series of sulfonated poly(arylene ether sulfone)(SPAES) copolymers with different degree of sulfonation(D_s) were synthesized by aromatic nucleophilic polycondensation of 3,3\'-disulfonate-4,4\'-dichlorodiphenylsulfone(SDCDPS),4,4\'-dichlorodiphenylsulfone(DCDPS) and 4,4\'-biphenol(BP).