부산대학교 도서관

Epiclon, 5-(2,5-dioxotetrahydrofurfuryl)-3-methyl-3-cyclohexenyl-1,2-dicarboxylic acid anhydride, reacted with p-aminobenzoic acid to give a dicarboxylic acid containing imide rings. This was further treated with thionyl chloride to give the corresponding diacid chloride having epiclon units and imide rings. New poly(imide-ether-amide)s have been synthesized by a solution polycondensation reaction of this diacid chloride with various aromatic diamines having ether bridges between phenylene rings. These polymers are easily soluble in polar amidic solvents such as N-methylpyrrolidinone or dimethylformamide and can be cast into thin flexible films or coatings from such solutions. They show high thermal stability, with initial decomposition temperature being above 350°C and glass transition temperature in the range of 223°C–238°C. [ABSTRACT FROM AUTHOR]