REUSABLE POLYARYLENE SULFIDE AND METHOD FOR PREPARING SAME

摘要

The present invention relates to a reusable polyarylene sulfide which exhibits and maintains superior mechanical properties, and the melt viscosity of which is not reduced when the polyarylene sulfide is molten, thus hardly causing degradation in the mechanical properties thereof. The present invention also relates to a method for preparing the polyarylene sulfide. The initial melt viscosity of the polyarylene sulfide, measured at a temperature of 300°C, is 300 to 6000 poise, and the melt viscosity measured after the polyarylene sulfide is heat-treated at a temperature of 300°C and molten is the same as or greater than the initial melt viscosity.