Cyclic tri(phenylene disulfide) polymers and the production thereof
AssigneeUniversity Patents, Inc.
InventorsCarl S. Marvel, Daniel Ting-Man Wong
Life of this patent
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Abstract
A tri(phenylene disulfide) polymer composed of para- or meta-tri(phenylene disulfide) units and units selected from the group consisting of diphenyl ether, bis(phenoxybenzenesulfonyl)benzene and bis(phenoxybenzenesulfonyl)diphenyl ether, is linked together with bivalent radicals selected from the group consisting of isophthaloyl and terephthaloyl radicals. In another embodiment, the tri(phenylene disulfide) can be substituted with biphenylene-2,2'-disulfide.
Claims22
A polymer comprising cyclic tri(phenylenedisulfide) moieties, wherein the sulfur atoms comprising the disulfide linkages are bonded together as --S--S--, and moieties of a polyaryl ether linked together with bivalent radicals selected from the group consisting of isophthaloyl and terephthaloyl radicals, said polyaryl ether being diphenyl ether or an ether of the formula ##STR2## wherein Ar is bivalent aromatic radical.
Dependencies are inferred from the claim text.