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Anomalous sorption in poly(ethyl methacrylate)

✍ Scribed by J. S. Vrentas; J. L. Duda; A.-C. Hou

Publisher
John Wiley and Sons
Year
1984
Tongue
English
Weight
425 KB
Volume
29
Category
Article
ISSN
0021-8995

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✦ Synopsis

Vapor sorption data were obtained for the ethylbenzene-poly(ethy1 methacrylate) system at 120OC. Successive step-change sorption experiments carried out at two-film thicknesses indicate the presence of maxima in the sorption curves. The fractional amount of overshoot decreased as the final pressure or weight fraction of the experiment increased and as the sample thickness increased. It is proposed that the maxima in the sorption curves are caused by structural rearrangements produced by relaxation of polymer chains.

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