Organo-Soluble Fluorinated Polyimides Derived from Bis-Trifluoromethyl-Substituted Aromatic Diamines and Various Aromatic Dianhydrides
โ Scribed by Liu, J.-G.; Zhao, X.-J.; Li, H.-S.; Fan, L.; Yang, S.-Y.
- Book ID
- 111974328
- Publisher
- SAGE Publications
- Year
- 2006
- Tongue
- English
- Weight
- 589 KB
- Volume
- 18
- Category
- Article
- ISSN
- 0954-0083
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A new aromatic tetracarboxylic dianhydride having a crank and twisted noncoplannar structure, 2,2ะ-bis(3,4-dicarboxyphenoxy)biphenyl dianhydride, was synthesized by the reaction of 4-nitrophthalonitrile with biphenyl-2,2ะ-diol, followed by hydrolysis and cyclodehydration. The biphenyl-2,2ะ-diyl-cont
Aromatic tetracarboxylic dianhydride having crank and twisted noncoplanar structure, 2,2 -bis(3,4-dicarboxyphenoxy)-1,1 -binaphthyl dianhydride, was synthesized by the reaction of 4-nitrophthalonitrile with 2,2 -dihydroxy-1,1 -binaphthyl, followed by alkaline hydrolysis of the intermediate bis(ether