Para-alkylstyrene/isoolefin copolymers and functionalized copolymers thereof
AssigneeExxon Chemical Patents Inc.
InventorsKenneth W. Powers, Hsien-Chang Wang, T-C Chung, Anthony J. Dias, Joseph A. Olkusz
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Abstract
A copolymer of a C.sub.4 to C.sub.7 isoolefin and a para-alkylstyrene is provided as well as the corresponding halogenated, functionalized and grafted derivatives thereof. Processes for producing these copolymers are also provided.
Claims59
A functionalized polymer of an isoolefin having from 4 to 7 carbon atoms and a para-alkylstyrene, wherein said functionalized polymer comprises a para-alkylstyrene moiety represented by the formula:
- ##STR76## wherein R and R.sup.1 are independently selected from the group consisting of hydrogen, alkyl, primary and secondary haloalkyl;
- and a functionalized para-alkylstyrene moiety having at least one type of functionalized group other than a halogen attached to said para-alkyl group, said functionalized polymer having a substantially homogeneous compositional distribution, and a ratio of Mw/Mn of less than about 6.
A copolymer of an isoolefin having from 4 to 7 carbon atoms and a para-alkylstyrene, said copolymer having a substantially homogeneous compositional distribution and comprising a para-alkylstyrene moiety represented by the formula:
- ##STR79## and a halogenated para-alkylstyrene moiety represented by the formula ##STR80## wherein R and R.sup.1 in each of said formulas are independently selected from the group consisting of hydrogen, alkyl, primary and secondary haloalkyl, and wherein X is a halogen and wherein said copolymer has a ratio of Mw/Mn of less than about 6.
Dependencies are inferred from the claim text.