| abstract |
Provided are a process for producing a polymer alloy, comprising melt-kneading at least two incompatible crystalline resins in a supercooled state by chaotic mixing using a twin-screw extruder; a polymer alloy obtainable by melt-kneading at least two incompatible crystalline resins, which has such a dispersed structure that particles dispersed in the polymer alloy have an average particle size of 0.001 to 1 µm, wherein in scattering measurement, (a) a peak half-width in a spectrum obtained by plotting scattering intensity against the wavenumber of scattered light and (b) a maximum wavenumber of the peak satisfy the relationship: 0 < (a)/(b) ¤ 1.5; and a molded article made of the polymer alloy. The polymer alloy of the present invention provides a molded article having excellent heat resistance, wet-heat resistance, and mechanical properties. |