A new method for the synthesis of sulfonated polynaphthylimides
Autor: | Yu. A. Dobrovol’skii, M. G. Bugaenko, Mikhail D. Dutov, Svyatoslav A. Shevelev, Olga V. Serushkina, A. V. Pisareva, A. L. Rusanov, E. G. Bulycheva |
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Rok vydání: | 2013 |
Předmět: | |
Zdroj: | Polymer Science Series B. 55:478-483 |
ISSN: | 1555-6123 1560-0904 |
DOI: | 10.1134/s1560090413070026 |
Popis: | 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. |
Databáze: | OpenAIRE |
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