Carbon fiber and carbon fiber-reinforced resin composition using it.

摘要

A carbon fiber having its surface coated with a copolymer composed of a diamine compound, a dicarboxylic acid compound and a glycidyl polyalkylene oxide derivative of the following formula (I), wherein the copolymer contains said polyalkylene oxide derivative in an amount of from 10 to 50% by weight as in the monomer composition: wherein R<1> is H or an alkyl group having not more than 20 carbon atoms, R<2> is H or CH3, and n is an integer of from 1 to 40. Also disclosed is a carbon fiber-reinforced resin composition having such a carbon fiber incorporated therein.