MANUFACTURING METHOD OF POLYACRYLONITRILE COPOLYMER FOR MOLDING CARBON FIBERS CAPABLE OF SYNTHESIZING POLYACRYLONITRILE WITH A HIGH YIELD, AND A MANUFACTURING METHOD OF CARBON FIBERS USING THE SAME

摘要

PURPOSE: A manufacturing method of polyacrylonitrile copolymer for molding carbon fibers is provided to increase the speed of a polymerization of a polyacrylonitrile with a high yield and to reduce a by-product and a deteriorated product by using a microwave for heating.;CONSTITUTION: A manufacturing method of polyacrylonitrile copolymer for molding carbon fibers comprises: a step manufacturing a composition including a monomer, a 0.01-1 wt% initiator, and a solvent; and a step radiating a microwave to the composition. The monomer is acrylonitrile monomer and one or more monomer selected from a group consisting of a methyl acrylate, a methacrylic acid and an itaconic acid. The initiator is 2,2'-azobis isobutyronitrile or a MEKP[methyl ethyl ketone peroxide]. The solvent is selected from the group of a dimethyl sulfoxide, a dimethylformamide, and formic acid.;COPYRIGHT KIPO 2012