"Effect of Crystallization Conditions on Spherulitic Texture and Tensile Properties of sPS/PPO Blends"

Gyanendra Dutt and Kevin M. Kit

Society of Plastics Engineers Annual Technical Conference, Dallas, Texas, May 7-10, 2001.

Abstract

Syndiotactic polystyrene (sPS) and poly(phenylene oxide) (PPO) blends, miscible in melt state, were crystallized from melt as well as quenched state at different temperatures. The effect of processing conditions on spherulitic texture, ultimate tensile properties and the mode of fracture was studied. The study suggests that by varying composition and processing conditions in melt miscible blends it is possible to control amorphous domain sizes, which is critical in achieving better mechanical properties