New rigid-rod and strictly alternating poly(benzoxazole-imide)s containing methyl-substituted p-phenylene units in the main chain

New rigid-rod poly(benzoxazole-imide)s c

New rigid-rod poly(benzoxazole-imide)s containing chloro-substituted p-phenylene units in the main chain

✍ Guey-Sheng Liou 📂 Article 📅 1999 🏛 John Wiley and Sons 🌐 English ⚖ 160 KB 👁 2 views

A series of new poly(o-hydroxy amide-imide)s with high molecular weights were synthesized by low-temperature solution polycondensation from a preformed imide ring and chloro-or dichloro-substituted p-phenylene-containing diacid chlorides of 2,5-bis(trimellitimido)chlorobenzene or 1,4-bis(trimellitim