| 摘要 |
A substantially linear, amorphous, unsaturated, high molecular weight copolymer of an aliphatic polyene contains three double bonds, one of which is of the vinyl type, selected from 1,4,9-decatriene and alkyl and/or aryl substituted 1,4,9-decatriene with ethylene and/or an aliphatic a -olefin of the general formula R-CH=CH2, in which R is an alkyl group containing from 1 to 6 carbon atoms, said copolymer comprising macromolecules containing unsaturations and comprising monomer units deriving from each monomer used, each monomer unit deriving from a polyene containing a free double bond. In the examples, terpolymers are produced by copolymerizing 1,4,9 - decatriene or 1 - phenyl - decatriene-1,4,9 with ethylene and propylene or butene-1; the catalysts utilized being aluminium diethyl chloride with either vanadium tetrachloride, vanadyl chloride or vanadium triacetylacetonate; or either aluminium diethyl monohydride, aluminium ethyl sesquichloride, aluminium trihexyl, or beryllium diethyl with vanadium tetrachloride. The polymerization is effected in n-heptane solution, and in one of the examples in the presence of hydrogen. The examples also include the use of zinc diethyl as a molecular weight regulator and the use of radio-active ethylene and radio-active 1,4,9-decatriene. The polymerization is terminated with a methanolic solution of phenyl-b -naphthylamine and the copolymer recovered in the conventional manner. In some of the examples the terpolymers are vulcanized using conventional vulcanizing ingredients either alone or after blending with a naphthenic oil. The Specification also mentions the use of catalyst complexing agents and that the polymerization may be continuous. |
