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About the estimation of phase modifications in polymers by the method of molecular probes—I. The study of polyacrylonitrile and of its copolymers with vinyl acetate

✍ Scribed by Elena-Maria Cǎlugǎru; I.A. Schneider

Publisher
Elsevier Science
Year
1974
Tongue
English
Weight
188 KB
Volume
10
Category
Article
ISSN
0014-3057

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✦ Synopsis

There is discussion of the application of reciprocal chromatography to study of the glass transition in polyacrylonitrile, polyvinyl acetate and their copolymers. This study shows one glass transition in PVAc, but three in PAN, in agreement with studies by the i.r.-method. The copolymers indicate a "cryoscopic" effect, i.e. lowering of the glass transition regions with increasing content of comonomer.

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