Y. Imai, M. Kakimoto
Jun 1, 1989
Citations
0
Influential Citations
26
Citations
Journal
Polymer-plastics Technology and Engineering
Abstract
Abstract Soluble high-temperature polymers containing a tetraphenylthiophene unit were successfully prepared. Four types of tetraphenylthiophene monomers—diamine, diisocyanate, dicarboxylic acid chloride, and dibromide—were synthesized starting from tetraphenylthiophene, which was readily obtained by the reaction of benzyl chloride and sulfur. Aromatic polyimides and copolyimides were prepared by the reactions of tetraphenylthiophene diamine with tetracarboxylic dianhydrides, tetraphenylthiophene diisocyanate with tetracarboxylic dianhydrides, and tetraphenylthiophene diamine with tetracarboxylic dithioanhydrides. Aromatic polyamides and copolyamides were obtained from the reaction pairs of tetraphenylthiophene diamine and dicarboxylic acid chlorides, tetraphenylthiophene dicarboxylic acid chloride and diamines, and tetraphenylthiophene dibromide, diamines, and carbon monoxide. Similarly aromatic polyamide-imides were prepared by the reaction of tetraphenylthiophene diamine with 4-chloroformylphthalic anh...