PARA-TYPE WHOLLY AROMATIC POLYAMIDE, FIBER OBTAINED FROM PARA-TYPE WHOLLY AROMATIC POLYAMIDE AND METHOD FOR PRODUCING PARA-TYPE WHOLLY AROMATIC POLYAMIDE

摘要

PROBLEM TO BE SOLVED: To provide a para-type wholly aromatic polyamide capable of obtaining a fiber excellent in mechanical characteristics and providing a para-type wholly aromatic polyamide fiber having high production stability.SOLUTION: There are provided: a para-type wholly aromatic polyamide containing copolyparaphenylene 3,4'-oxydiphenylene terephthalamide and produced by polymerization of a monocarboxylic acid component in the range of a ratio of 0.01 to 0.5 mol% in an aromatic carboxylic acid component used; and a para-type wholly aromatic polyamide fiber obtained from the para-type wholly aromatic polyamide. The para-type wholly aromatic polyamide fiber has tensile strength of 24 cN/dtex or more and a tensile modulus of elasticity of 550 cN/dtex or more.