| 摘要 |
ALUMINOXANES HAVING C2-C10 ALKYL GROUPS CAN CONVENIENTLY BE USED IN HOMOGENEOUS OLEFIN POLYMERIZATION CATALYST COMPOSITIONS PREPARED BY CONTACTING A) A METALLOCENE OF THE GENERAL FORMULA (I):(CPYQ)MMXNZOWHEREIN CP OR EACH SAME OR DIFFERENT CP IS ONE OF A MONO- OR POLYSUBSTITUTED, FUSED OR NON-FUSED, HOMO- (= ISO-) OR HETEROCYCLIC CYCLOPENTADIENYL LIGAND, INDENYL LIGAND, TETRAHYDROINDENYL LIGAND, FLUORENYL LIGAND, OR OCTAHYDROFLUORENYL LIGAND, Y OR EACH SAME OR DIFFERENT Y IS A SUBSTITUENT AT THE CYCLOPENTADIENYL RING OF SAID CP LIGAND AND IS ONE OF AN -OR, -SR, -NR2, -C(H OR R)=, OR -PR2 RADICAL, R OR EACH SAME OR DIFFERENT R BEING ONE OF A SUBSTITUTED OR UNSUBSTITUTED C1-C16 HYDROCARBYL GROUP, A TRI-C1-C8 HYDROCARBYLSILYL GROUP, A TRI-C1-C8 HYDROCARBYLOXY SILYL GROUP, A MIXED C1-C8HYDROCARBYL AND C1-C8 HYDROCARBYLOXY SILYL GROUP, A TRI-C1-C8 HYDROCARBYL GERMYL GROUP, A TRI-C1-C8 HYDROCARBYLOXY GERMYL GROUP OR A MIXED C1-C8 HYDROCARBYL AND C1-C8 HYDROCARBYLOXY GERMYL GROUP; M IS A TRANSITION METAL OF GROUP 4 OF THE PERIODIC TABLE (IUPAC) AND BOUND TO THE LIGAND OR LIGANDS CP IN AT LEAST AN n5 BONDING MODE; X OR EACH SAME OR DIFFERENT X IS BOUND TO M AND IS ONE OF A HYDROGEN, A HALOGEN, A SUBSTITUTED OR UNSUBSTITUTED C1-C8 HYDROCARBYL GROUP, A C1-C8 HYDROCARBYLHETEROATOM (O, S, N, P) GROUP OR A TRI-C1-C8 HYDROCARBYL SILYL GROUP OR TWO X FROM TOGETHER WITH M A C4-C20 METALLOCYCLIC RING STRUCTURE; Z IS A BRIDGE ATOM OR GROUP BETWEEN TWO CP LIGANDS OR BETWEEN ONE CP LIGAND AND THE TRANSITION METAL M; Q IS, WHEN CP IS UNBRIDGED, 0-5 FOR CP = CYCLOOPENTADIENYL, 0-3 FOR CP=INDENYL OR TETRAHYDROINDENYL AND 0-1 FOR CP = FLUORENYL OR OCTAHYDROFLUORENYL, OR Q IS, WHEN CP IS BRIDGED, 0-4 FOR CP = CYCLOPENTADIENYL, 0-2 FOR CP = INDENYL OR TETRAHYDROINDENYL AND O FOR CP = FLUORENYL OR OCTAHYDROFLUORENYL; M IS 1 OR 2; M.Q > 1; 0 IS O OR 1; AND N IS 4-M-O, EXCEPT WHEN THERE IS A BRIDGE Z BETWEEN TWO CP LIGANDS, IN WHICH CASE N IS 4-M, AND B)AN ALUMINOXANE OF ONE OF THE FOLLOWING FORMULAS (2):(2 LINEAR)
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