| 摘要 |
PURPOSE:To produce a resin molding having improved impact resistance while maintaining characteristic heat resistance by irradiating an aromatic polyether- based copolymer molding with a given dose of radiation. CONSTITUTION:A molding composed of an aromatic polyether-based copolymer obtained by subjecting a compound shown by formula I, a compound shown by formula II (X is halogen) and a compound shown by formula III (n is 1 or 2) to polycondensation through desalting, comprising a reaping unit shown by formula IV and one shown by formula V in ratio of the unit shown by formula IV (group shown by formula IV/formula IV + formula V) of 0.1-0.5 in mol base, preferably having >=3,000 poise melt viscosity at 400 deg.C and 130-250 deg.C glass transition temperature is irradiated with 10<5>-10<7> gray dose of radiation (e.g. X-ray or accelerated electron ray) in air, in vacuum or in an inert gas at room temperature - 250 deg.C to produce a resin molding having excellent heat resistance and impact resistance, comprising the aromatic polyether- based copolymer. |
