| 摘要 |
Fullerene-derived metallocenes represented by the formula R m -F-(MX p A q ) n or R m -F-(MX t -A-R<SP>2</SP>-A) n , wherein F is a fullerene core, R is independently selected from the group consisting of H, O, C 1-20 linear and branched alkyl, C 6-40 aryl, C 7-40 alkylaryl, and C 7-40 arylalkyl, M is a transition metal, X is independently a halogen, hydride, alkyl, aryl or chelating group, A is independently unsubstituted and substituted cyclopentadienyl, unsubstituted and substituted indenyl, unsubstituted and substituted fluorenyl, a fused ring containing cyclopentadienyl, indenyl, or fluorenyl moiety, R<SP>2</SP> is a C 1-6 linear, branched or cyclic alkylene group, an alkyl substituted silanylene group or an alkyl substituted silaalkylene group, which is bridged between the two A groups, t is a positive integer, and the sum of 3+t is equal to the oxidation state of M, m is an integer from 1 to 10, p and q are positive integers, and the sum of 1+p+q is equal to the oxidation state of M, and n is an integer from 1 to 10, are catalysts for preparing olefin polymers.
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