Abstract
AbstractVanadium trisacetylacetonate [V(C5H7O2)3] and vanadyl bisacetylacetonate [VO‐(C5H7O2)2] were found to be satisfactory catalysts (with Al2Et3Cl3 cocatalyst) for the terpolymerization of ethylene, propylene, and dicyclopentadiene to unsaturated, sulfurcurable elastomers. Polymerization solvents of heptane or benzene were used. Best yields of terpolymers were obtained in benzene. Terpolymers with unsaturations of greater than ≃0.20 mole CC/kg. can be cured with a sulfur‐based vulcanzing recipe. Both acetylacetonates produced terpolymers, in benzene, with practically equivalent properties. They also appeared to be nearly equal to corresponding terpolymers made with catalysts of VOCl3 or VCl4.
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More From: Journal of Polymer Science Part A-1: Polymer Chemistry
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