Novel synthesis of macrocyclic disulfides from poly(phenylene sulfide) by depolymerization reaction

A new effective method is presented for the easier preparation of macrocyclics from poly(phenyl sulfide)by two steps: (1) depolymerization reaction of poly(phenyl sulfide) with Na2S in the presence of weak base, and (2) oxidation reaction of depolymerization products. © 2008 Wiley Periodicals, Inc. J Appl Polym Sci, 2008