13C n.m.r. study of poly[(S[S,(+)]-5-Methyl-1-heptene (cas 16197-40-3)] and poly(1-heptene) prepared by Ziegler-Natta catalyst

Add time:07/24/2019    Source:sciencedirect.com

Isotactic homopolymers of high optical purity (S)-5-methyl-1-heptene and of 1-heptene have been prepared and studied by 13C n.m.r. The tacticity degree evaluation of the polymers was performed on the basis of skeletal methine or methylene carbon atoms resonances in terms of diads. Conformational properties of both polymers have been investigated and discussed on the basis of n.m.r. dynamic parameters.

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