Abstract

A method has been developed for determining the reactivity ratios in copolymerization of α,β-unsaturated ketones with isoprene, by means of kinetic measurements made directly in the cell of an NMR spectrometer. Analysis of the molecular structure of the copolymers showed that there is a tendency toward alternation of the monomer units. The relationship between the copolymerization constants, the conformational state of the α,β-unsaturated ketones and the site of addition of the alkyl substituents to the conjugated system was found.

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