The Effect of Annealing on the Thermal and Mechanical Properties of A High Nitrile Plastic.

In the commercial molding process, a plastic article is rapidly cooled in the mold from a temperature well above its Tg. As soon as the temperature decreases to the proximity of Tg, the mobility of a polymer molecule decreases rapidly, leading to the formation of excess free volume or excess enthalpy in the molded articles. [ABSTRACT FROM PUBLISHER]