Block polymers of polyphenylene oxide and polystyrene
AssigneeGeneral Electric Company
InventorDwain M. White
Life of this patent
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Abstract
Linear, branched and/or cross-linked block polymers of polyphenylene oxides and polystyrene are described. The polyphenylene oxide-polystyrene block polymers can be molded, calendered, or extruded as films, sheets, fibers, laminates or other useful articles of manufacture.
Claims14
A heterocyclic-coupled block copolymer comprising a carbon and nitrogen ring containing aromatic heterocyclic radical, a divalent quinone-coupled phenoxy radical and a divalent bis(oxyarylenethio)polystyrene radical.
A heterocyclic-coupled block polymer comprising a heterocyclic carbon and nitrogen containing heterocyclic aromatic heterocyclic radical in which at least two of the aromatic heterocyclic ring carbon atoms are singly and directly bonded to oxygen atoms of a divalent quinone-coupled phenoxy radical and/or a divalent bis(oxyarylenethio)polystyrene radical, said divalent heterocyclic aromatic radical being of the formula
- --Ar.sub.(hetero))
- wherein Ar is a heteroarylene radical;
- said divalent quinone-coupled phenoxy radical being of the formula ##STR36## wherein independently each --OEO-- is a divalent quinone residue, E is a divalent arene radical, either a or b is at least equal to 1, the sum of a plus b is at least equal to 10, and R is hydrogen, a hydrocarbon radical, a halohydrocarbon radical, a hydrocarbonoxy radical or a halohydrocarbonoxy radical;
- said divalent bis(oxyarylenethio)polystyrene radical being of the formula ##STR37## wherein independently each x is an integer at least equal to 1 and is a maximum equal to the number of replaceable hydrogen atoms associated with the R" arene radical, y is an integer at least equal to 1, R" is at least a divalent arene radical, Q is a hydrogen, halogen, alkyl or alkenyl radical, p is an integer of from 1 to 5, and Z is an integer at least equal to 2.
A process of forming a heterocyclic-coupled polymer which comprises contacting a carbon and nitrogen ring containing aromatic heterocyclic halide having at least two halogen atoms directly bonded to heterocyclic ring carbon atoms with a quinone-coupled polyphenylene oxide having an average hydroxyl group per molecule value greater than zero including 2.0 or less, and a polyfunctional polystyrene selected from the class consisting of a bis(hydroxyarylenethio)polystyrene or a bis(organosiloxyarylenethio)polystyrene.
Dependencies are inferred from the claim text.