Patent ID: 6057410
Filing Date: 2000-05-02
Classification: C07F,C08F,Y10S

Abstract:
A process for preparing a polymeric ligand said process comprising contacting at least one bridged cyclopentadienyl-type monomer and at least one initiator under polymerization conditionswherein said polymeric ligand is represented by the formula Q.sub.n, and wherein Q is a unit containing said at least one bridged cyclopentadienyl-type monomer, and wherein said polymeric ligand is a homopolymer or a copolymer, n is 1-5000, andwherein said at least one bridged cyclopentadienyl-type monomer is represented by the formula ZRZ wherein each Z is individually a cyclopentadienyl-type group selected from the group consisting of cyclopentadienyl, substituted cyclopentadienyl, indenyl, substituted indenyl, fluorenyl, substituted fluorenyl, styrene, and substituted styrene, R is a bridging group and is an alkylene group containing from 1 to 12 carbon atoms, an aryl-containing group having from 6 to 12 carbon atoms, silicon-containing group, germanium-containing group, or tin-containing group, andwherein said at least one initiator is selected from the group consisting of azobisisobutyronitrile, phenyl-azo-triphenylmethane, tert-butyl peroxide, cumyl peroxide, acetyl peroxide, benzoyl peroxide, lauroyl peroxide, tert-butyl hydroperoxide, tert-butyl perbenzoate, boron trifluoride etherate, alkali metal compounds, zinc dichloride, and aluminum trichloride.