Abstract
AbstractThe polymerization of isobutene and its copolymerization with isoprene, initiated by diethylaluminium iodide + iodine was studied in pentane, dichloromethane, and chloroethane, and the influence of the concentrations of the reagents and of the temperature on the copolymer yield and molecular weight was investigated. In the homopolymerization of isobutene initiated by diethylaluminium iodide+iodine the initiation is a comparatively slow process leading to non‐stationary reactions. The interaction between initiator and co‐initiator in the absence of monomer produces products (most probably ethylaluminium diiodide) which, on addition of monomer, cause fast, incomplete polymerization of isobutene.
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