A new method for the synthesis of sulfonated polynaphthylimides

作者：Bugaenko M G^*; Rusanov A L; Bulycheva E G; Shevelev S A; Dutov M D; Serushkina O V; Pisareva A V; Dobrovol'skii Yu A

来源：Polymer Science - Series B, 2013, 55(7-8): 478-483.

DOI：10.1134/S1560090413070026

A new method for the synthesis of sulfonated polynaphthylimides has been developed on the basis of the postsulfonation of high-molecular-mass polynaphthylimides with a sulfuric acid-oleum mixture. Sulfonated polymers of this type have been obtained from the polycondensation products of 5-phenylthiophenylene-1,3-diamine with dianhydrides of 1,4,5,8-naphthalenetetracarboxylic acid and 4,4'-(1,4-phenylenedicarbonyl)-bis-naphthalene-1,8-dicarboxylic acid. It has been shown that hydrogen peroxide oxidation of sulfide bridge groups of these polymers in an acidic medium yields high-molecular-mass compounds that contain sulfonic bridge fragments and, therefore, have increased thermal stabilities and enhanced proton conductivities.

• 出版日期2013-7