| abstract |
The present invention provides a graft copolymer of a syndiotactic styrene/para-alkylstyrene copolymer, having the formula of <CHEM> wherein R<1> and R<2> are independently selected from the group consisting of hydrogen, alkyl, and primary and secondary haloalkyl; X is a functional group selected from a group containing halogen, oxygen, sulfur, silicon, nitrogen, carbon, phosphorus, and mixtures thereof; Y is a polymer moiety; a ranges from 10 to 30000; b ranges from 0 to 30000; c ranges from 0 to 30000; and d ranges from 1 to 30000. The compatibility of the graft copolymer of syndiotactic styrene/para-alkylstyrene copolymer of the present invention with other polymers is improved over a syndiotactic styrene polymer. Also, the graft copolymer of the present invention can serve as a compatibilizer for a polymer blend. |