Crystalline transitions and the solid‐state extrusion of polymers

摘要

AbstractExtrusion experiments on eight polymers in our laboratory and eight additional polymers in other laboratories reveal that solid‐state extrusion and malleability occur in semicrystalline polymers that have a reversible crystalline transition,Tc, and do not occur in crystalline polymers devoid ofTc, The solid‐state extrusion takes place only in the temperature range ofTc≪T