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The estimation of phase modifications in polymers by the method of “molecular probes” in gas chromatography—V The study of first and second-order transitions in poly (ε-caprolactam)

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

Publisher
Elsevier Science
Year
1977
Tongue
English
Weight
180 KB
Volume
13
Category
Article
ISSN
0014-3057

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The estimation of phase modifications in
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Study of glass transitions in PVC-PS and PVC-PAN mixtures by the method of "molecular probes" indicates possible compatibility of PVC-PS mixtures with either low or high PS-content. PVC-PAN mixtures seem to be incompatible for the whole range of compositions.

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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
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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