Polyisobutylenes and process for making same

A method for producing a primary methacrylate-terminated polyisobutylene compound comprising the steps of:

• (a) providing an allyl-terminated polyisobutylene having at least two allyl termini, wherein the allyl termini are formed from straight C3 to C12 allyl groups having a double bond present at the end of the allyl group;
• (b) subjecting allyl-terminated polyisobutylene to anti-Markovnikov bromination to form a primary bromine-terminated polyisobutylene compound having at least two primary bromine termini;
• (c) converting the primary bromine-terminated polyisobutylene compound to a primary methacrylate-terminated polyisobutylene via a reaction with at least one alkaline methacrylate compound, the primary methacrylate-terminated polyisobutylene having at least two primary methacrylate termini;
• and
• (d) recovering the primary methacrylate-terminated polyisobutylene.

A method for producing a primary amine-terminated polyisobutylene compound comprising the steps of:

• (i) providing an allyl-terminated polyisobutylene having at least two allyl termini, wherein the allyl termini are formed from straight C3 to C12 allyl groups having a double bond present at the end of the allyl group;
• (ii) subjecting the allyl-terminated polyisobutylene to anti-Markovnikov bromination to form a primary bromine-terminated polyisobutylene compound having at least two primary bromine termini;
• (iii) converting the primary bromine-terminated polyisobutylene compound to a primary phthalimide-terminated polyisobutylene via a reaction with at least one alkaline phthalimide compound, the primary phthalimide-terminated polyisobutylene having at least two primary phthalimide termini;
• (iv) converting the primary phthalimide-terminated polyisobutylene compound to a primary amine-terminated compound via a reaction with an amine hydrate compound;
• and
• (v) recovering the primary amine-terminated polyisobutylene.

A method for producing a primary bromine-terminated polyisobutylene compound comprising the steps of:

• providing an allyl-terminated polyisobutylene having at least two allyl termini, wherein the allyl termini are formed from straight C3 to C12 allyl groups having a double bond present at the end of the allyl group;
• subjecting the allyl-terminated polyisobutylene to anti-Markovnikov bromination to form a primary bromine-terminated polyisobutylene compound having at least two primary bromine termini;
• and
• recovering the primary bromine-terminated polyisobutylene.