Copolymer-containing compositions from substituted triazine-capped polyphenylene ethers

Claim 1

A composition comprising copolymers prepared by the reaction of a polymer containing reactive groups with a substituted alkoxy- or alkylthio-triazine-capped polyphenylene ether having end groups of the formula ##STR13## wherein: each Q 1 is independently halogen, primary or secondary lower alkyl, phenyl, haloalkyl, aminoalkyl, hydrocarbonoxy, or halohydrocarbonoxy wherein at least two carbon atoms separate the halogen and oxygen atoms; each Q 2 is independently hydrogen, halogen, primary or secondary lower alkyl, phenyl, haloalkyl, hydrocarbonoxy or halohydrocarbonoxy as defined for Q 1 ; X 1 is an alkyl, cycloalkyl or aromatic radical or ##STR14## X 2 is a group displaceable by nucleophilic aliphatic substitution; each Z is independently oxygen or sulfur; each R 1 is independently hydrogen, C 1-4 primary or secondary alkyl or a non hydrocarbon substituent substantially inert to displacement by nucleophilic moieties; R 2 is a C 1-3 alkylene radical which is unsubstituted or is substituted with moieties selected from the group consisting of C 1-4 primary or secondary alkyl radicals and non-hydrocarbon substituents as defined for R 1 ; each R 3 is independently R 1 or X 2 ; m is 0 or 1; and n is 1-3.