| 摘要 |
IMPROVED PROCESS FOR MODIFYING UNSATURATED POLYMERS Process for the preparation of a functionalized hydrogenated polymer by (a) catalytically hydrogenating an unsaturated polymer, (b) after the hydrogenation is completed and before the hydrogenation catalyst is deactivated, contacting the hydrogenated polymer with a functionalizing agent, and (c) recovering the functionalized hydrogenated polymer; and a functionalized selectively hydrogenation copolymer of a monoalkenyl-aromatic hydrocarbon and a polyolefin in which the functional groups are predominantly incorporated in the polyolefin portion and separated from any residual unsaturation by at least three carbon atoms. |
