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Ionic interactions in sulphonated poly(ethylene terephthalate)—II. Thermal studies

✍ Scribed by Barbara Ostrowska-Gumkowska; Jadwiga Ostrowska-Czubenko

Publisher
Elsevier Science
Year
1988
Tongue
English
Weight
316 KB
Volume
24
Category
Article
ISSN
0014-3057

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✦ Synopsis

AMtraet--The glass transition temperatures of alkali metal salts of sulphonated poly(ethylene terephthalate) were found for the range of sulphonation from 1.9 to 10.1 mol%. It was found that T. depends largely on the degree of sulphonation rather than on the detailed properties of the cation. T~ae results suggest that some change in the state of ion aggregation occurs above a sulphonation level of roughly 5 tool%, in agreement with previous findings obtained by the f.i.r, method.

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