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The synthesis of polyimides of pyrazine tetracarboxylic acid

✍ Scribed by V. V. Korshak; G. M. Tseitlin; A. I. Pavlov; T. G. Pogorelova; V. A. Smirnova

Book ID
112490929
Publisher
Springer
Year
1968
Tongue
English
Weight
206 KB
Volume
17
Category
Article
ISSN
1573-9171

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## Thianthrene -2,3,7,8 -tetracarboxylic dianhydride -5,5,10,10 -tetraoxide (TADATO) , a dianhydride having two sulfonyls between two phenyl rings, was synthesized and polymerized with several diamines by a two-step method. Tough polyimide membranes were obtained with flexible diamines but not wit