PURPOSE: To obtain a thermoplastic resin composition excellent in heat resistance, moldability and impact resistance by mixing a polyarylethersulfone of a specified structure with a copolymer of an α,β-unsaturated cyclic imide with an aromatic vinyl compound.
CONSTITUTION: The resin composition comprises 95-5wt.% polyarylethersulfone composed of repeating units of formula I and repeating units of formula II in a molar ratio of (10-70):(30-90) and 5-95wt.% copolymer comprising repeating units of an α,β-unsaturated cyclic imide and repeating units of an aromatic vinyl compound. The molecular weight of the polyarylethersulfone is desirably such that the reduced viscosity is 0.2-1.0 when measured in the 0.5g/100mol solution in N-methyl-2-pyrrolidone at 30°C. Examples of the α,β-unsaturated cyclic imide include maleimide or N-phenylmaleimide. Examples of the aromatic vinyl compounds include styrene and α-methylstyrene.
DOI KAZUHIRO
KAMEI EIICHI
