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Case II swelling of poly(ethylene terephthalate) in organic solvents

1981; Wiley; Volume: 26; Issue: 8 Linguagem: Inglês

10.1002/app.1981.070260814

1097-4628

Toshio Haga,

Polymer Nanocomposites and Properties

Journal of Applied Polymer ScienceVolume 26, Issue 8 p. 2649-2655 Article Case II swelling of poly(ethylene terephthalate) in organic solvents Toshio Haga, Toshio Haga Faculty of Education, Hirosaki University, Hirosaki-City, Aomori 036, JapanSearch for more papers by this author Toshio Haga, Toshio Haga Faculty of Education, Hirosaki University, Hirosaki-City, Aomori 036, JapanSearch for more papers by this author First published: August 1981 https://doi.org/10.1002/app.1981.070260814Citations: 16AboutPDF ToolsRequest permissionExport citationAdd to favoritesTrack citation ShareShare Give accessShare full text accessShare full-text accessPlease review our Terms and Conditions of Use and check box below to share full-text version of article.I have read and accept the Wiley Online Library Terms and Conditions of UseShareable LinkUse the link below to share a full-text version of this article with your friends and colleagues. Learn more.Copy URL Abstract The swelling kinetics of crystalline PET films in chloroform–n-hexane mixtures were examined as a function of chloroform concentration. With increasing concentration, the swelling mechanism varied from Fickian to Case II behavior. The dependence of the swelling mechanism on the equilibrium uptake and activation energy for swelling were thoroughly compatible with those presented by other workers. From a viewpoint of superposition of Fickian and Case II swelling, the intermediate swelling between the above two limiting cases was analyzed by Kwei's equation. The magnitude of the diffusion coefficient obtained was remarkably smaller than that presented for the swollen amorphous polymer. The magnitude of the penetration velocity is also discussed in comparison with the data for amorphous polymer. Citing Literature Volume26, Issue8August 1981Pages 2649-2655 RelatedInformation