The aggregation of random and block copolymers containing acrylonitrile in mixed solvents

Large time‐dependent changes in solution viscosity and turbidity have been found on adding nonsolvents to solutions of block, random, and homopolymers containing polyacrylonitrile in N,N‐dimethylformamide. These changes have been related to the reversible aggregation of polyacrylonitrile molecules i...

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Bibliographic Details
Published in:Journal of polymer science 1960-11, Vol.47 (149), p.149-156
Main Authors: Climie, I. E., White, E. F. T.
Format: Article
Language:English
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Summary:Large time‐dependent changes in solution viscosity and turbidity have been found on adding nonsolvents to solutions of block, random, and homopolymers containing polyacrylonitrile in N,N‐dimethylformamide. These changes have been related to the reversible aggregation of polyacrylonitrile molecules in solution. The effects of polymer concentration, molecular weight, structure and composition have been investigated and a possible mechanism of aggregation suggested.
ISSN:0022-3832
1542-6238
DOI:10.1002/pol.1960.1204714913