Isobutylene copolymer, manufacturing method of isobutylene copolymer and isobutylene copolymer product

摘要

The isobutylene copolymer of the present invention includes a repeating unit derived from isobutylene; And C ₄ to C other than isoprene, butadiene, cyclopentadiene, dicyclopentadiene, limonene, substituted styrene, and isoprene, butadiene, limonene, cyclopentadiene or dicyclopentadiene. _It includes a repeating unit derived from one or more comonomers selected from ₁₀ dienes, wherein the molar ratio of the repeating units derived from the isobutylene to the repeating units derived from the comonomer is 75: 1 to 1.5: 1. The copolymers have a molecular weight (M _n ) of 200 to 20,000 Daltons, and when diene monomers are used, typically have high double bond content and high vinylidene double bond content.