| 摘要 |
PROBLEM TO BE SOLVED: To obtain the subject copolymer excellent in compatibility with other polar group-containing resin and capable of exhibiting excellent crosslinking efficiency and modification efficiency by copolymerizing a specificα-olefin with a cyclic olefin and a conjugated diene monomer. SOLUTION: This copolymer is obtained by copolymerizing (A) a 2-12C straight-chain or branched chainα-olefin with (B) a cyclic olefin, preferably having a structure of formula I [(n) is 0 or 1; (m) is 0 or positive integer; (q) is 0 or 1; R<1> to R<18> , R<a> and R<b> are each H, a halogen, a hydrocarbon group, etc.), or formula II [(p) and (q) are each 0 or positive integer; (m) and (n) are each 0, 1 or 2; R<1> to R<19> are each H, a halogen, an alkoxy, etc.), and (C) a conjugated diene monomer, preferably of formula III [R<1> and R<2> are H, a 1-8C alkyl or an aryl, with the proviso that at least one of R<1> and R<2> is H]. The copolymer has <=25 deg.C glass transition temperature (Tg) measured by differential scanning calorimeter.
|
