Olefin-metathesis catalysts and method for preparing low-molecular-weight nitrile butadiene rubber
    1.
    发明授权
    Olefin-metathesis catalysts and method for preparing low-molecular-weight nitrile butadiene rubber 有权
    烯烃复分解催化剂和制备低分子量丁腈橡胶的方法

    公开(公告)号:US09346908B1

    公开(公告)日:2016-05-24

    申请号:US14700764

    申请日:2015-04-30

    摘要: An olefin-metathesis catalyst is provided. The olefin-metathesis catalyst includes a magnetic carrier, a polymer having formula (I) grafted on the magnetic carrier, and a ruthenium complex loaded on the polymer. A method for preparing low-molecular-weight nitrile butadiene rubber is also provided. In formula (I), one of X, Y and Z is nitrogen atom, the others are carbon atoms, R1 and R2, independently, include hydrogen, ester group, C1-10 alkyl group, C3-8 cycloalkyl group, 4-ring to 8-ring heterocycloalkyl or C6-10 aryl group, R3 includes hydrogen or C1-10 alkyl group, m ranges from 10 to 2,000, and n ranges from 0 to 1,000.

    摘要翻译: 提供烯烃 - 复分解催化剂。 烯烃 - 复分解催化剂包括磁性载体,接枝在磁性载体上的式(I)的聚合物和负载在聚合物上的钌络合物。 还提供了制备低分子量丁腈橡胶的方法。 在式(I)中,X,Y和Z之一为氮原子,其余为碳原子,R1和R2独立地为氢,酯基,C1-10烷基,C3-8环烷基,4-环 至8-环杂环烷基或C 6-10芳基,R 3包括氢或C 1-10烷基,m为10至2,000,n为0至1,000。