| 摘要 |
Tris(pentafluorophenyl)borane complexes having the general formula (C6F5)3Bx(YXH)q wherein X is oxygen, or sulfur; q is 1 to 3; Y is a hydrogen atom, R<1>-, (R<2>)3Si, or (R<3>)2C=N-; R<1> is a hydrocarbyl group containing 1 to 500 carbon atoms, and may contain a divalent oxygen and further may be a fluorine-containing hydrocarbyl group; R<2> is independently a linear or branched alkyl group containing 1 to 25 carbon atoms, or a phenyl group, further R<2> may contain a SiO- group; and R<3> is independently a hydrocarbyl group containing 1 to 25 carbon atoms; R<3> may be a hydrogen atom provided both R<3> groups selected are not hydrogen atoms; and to complexes containing the borane complexes with an organometallic compound, either as a neutral compound or as an acidic salt that are useful as catalysts for polymerization and copolymerization of olefins and to polymeric products prepared using these catalysts. |
