WALCHER, T and GORITZ, D (1995) A METHOD FOR DETERMINING INTRINSIC DIFFUSION-COEFFICIENTS IN THE PERVAPORATION PROCESS. MACROMOLECULAR CHEMISTRY AND PHYSICS, 196 (1). pp. 429-439. ISSN 1022-1352,
Full text not available from this repository.Abstract
An apparatus based on a differential gas-chromatographic detection system was designed in order to obtain information about the average permeation coefficient for pervaporation (PVAP) of pure liquids through isotactic poly(propylene) (i-PP). The non-ideal concentration dependence of diffusivity D prevents one from solving the diffusion equations exactly. Therefore, a method has been developed to obtain information on the intrinsic diffusion coefficient D-0 and the plasticisation parameter gamma for the two-parameter function D(c) used. In addition, the concentration profile of the liquid in the membrane can be evaluated.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | MEMBRANE; PROFILES; |
| Depositing User: | Dr. Gernot Deinzer |
| Last Modified: | 19 Oct 2022 08:38 |
| URI: | https://pred.uni-regensburg.de/id/eprint/52867 |
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