FUNCTIONALIZED COPOLYMERS OF PARA-ALKYLSTYRENE/ISOOLEFIN PREPARED BY NUCLEOPHILIC SUBSTITUTION
A functionalized polymer of an isoolefin having about 4 to about 7 carbon atoms and a para-alkylstyrene, wherein at least one type of a functional group is attached to the para-alkyl group of the para-alkyl styrene, said polymer having a substantially homogeneous compositional distribution.