| 摘要 |
PURPOSE:To provide an aromatic ketone copolymer improved in processability, handleability and solvent resistance without detriment to the heat resistance, crystallinity, etc., of a heat-resistant polyarylene thioether ketone. CONSTITUTION:A polyarylene thioether ketone copolymer comprising polyarylene thioether ketone segments (A) and polyarylene thioether segments (B), wherein the ratio (by weight) of the total amount of segments (A) to the total amount of segments (B) is in the range of 0.05-5, the number-average degree of polymerization of segment (B) is 1 to below 10, and the melt viscosity (as measured at 350 deg.C and a shear rate of 1200/sec) is 2-100000 P, and its production. |
