| 摘要 |
1519471 Homo- or copolymerization of conjugated diolefines ANIC SpA 17 July 1975 [2 Aug 1974] 30115/75 Heading C3P Conjugated diolefines are homopolymerized or copolymerized with other conjugated diolefins in a hydrocarbon or halohydrocarbon solvents in the presence of a catalyst system comprising (a) a vanadium compound (b) a compound of the formula AlR1R2X where R1 and R2 are selected from hydrogen and C1-C8 hydrocarbon radicals and X is halogen and (c) an organic compound containing the group -CX3 where X is halogen. In the examples butadiene is homopolymerized or copolymerized with piperylene using vanadium triacetylacetonate, AlEt2Cl5, and trichloroacetic acid. |
