| abstract |
A method for forming a polyarylene sulfide is provided. The method comprises supplying a waste composition to a vessel, the waste composition containing arylene sulfide byproducts, such as an arylene sulfide oligomer, cyclic polyarylene sulfide, and/or fine polyarylene sulfide particles. The arylene sulfide byproducts are heated to a temperature of from about 260C to about 285C in the presence of a sulfur reactant, thereby forming a high molecular weight polyarylene sulfide having a number average molecular weight of about 2,000 Daltons or more. |