Studies in Cyclocopolymerization. VII. Copolymerization of Chloromaleic Anhydride with Divinyl Ether

doi:10.1080/00222337108061101

Paper

Studies in Cyclocopolymerization. VII. Copolymerization of Chloromaleic Anhydride with Divinyl Ether

Published Nov 1, 1971 · L. J. Guilbault, G. Butler

Journal of Macromolecular Science, Part A

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Abstract

Abstract Chloromaleic anhydride was found to copolymerize with divinyl ether to form soluble copolymers of 1:1 composition, devoid of residual unsaturation. A bicyclic structure is proposed in which the polymer backbone consists only of divinyl ether units. The ease with which the copolymers underwent dehydrohalogenation suggests that the hydrogen and chlorine atoms on the anhydride unit are in a trans configuration as a result of a stepwise cycli-zation process. Oxidation of the hydrolyzed, dehydrohalogenated copolymers afforded the corresponding vic-diol copolymers. The absence of a significant decrease in copolymer molecular weight upon periodic acid cleavage of the vic-diol copolymers supported the proposed structure. Functional group analyses and softening points were in accord with the structures of the derived copolymers.

Study Snapshot

Chloromaleic anhydride copolymerizes with divinyl ether to form soluble copolymers with a bicyclic structure, resulting in vic-diol copolymers with no residual unsaturation.

PopulationOlder adults (50-71 years)

Sample size24

MethodsObservational

OutcomesBody Mass Index projections

ResultsSocial networks mitigate obesity in older groups.

Studies in Cyclocopolymerization. VII. Copolymerization of Chloromaleic Anhydride with Divinyl Ether

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