Diffusion coefficients of liquids in polymer membranes by a desorption method
โ Scribed by Morton Fels; Robert Y. M. Huang
- Publisher
- John Wiley and Sons
- Year
- 1970
- Tongue
- English
- Weight
- 671 KB
- Volume
- 14
- Category
- Article
- ISSN
- 0021-8995
No coin nor oath required. For personal study only.
โฆ Synopsis
A method to obt,ain the diffusion coefficients and free volume parameters from desorption data for organic liquids in polymer films is presented. The method c0nsist.s of fit,ting a numerical solution of the diffusion equation to experimental desorption data. Some problems that arise in the solution of the diffusion equat,ion are discussed and results for a benzene-polyet,hylene system are presented.
๐ SIMILAR VOLUMES
performed in a straight tube. It will be clear from this figure that accurate measurements can only be carried out at linear flow (2) velocitieslowerthan 20cm s-'.Tablesl,2,and3listthediffusion coefficients ofvariouscomponentscommonlyusedforcharacterization of the efficiency of reversed phase and st
Infrared spectra of CO, sorbed in rubbery and glassy polymeric membranes were measured to examine the relationships between the spectroscopic data and the physical properties of the membranes. The two peaks observed in the spectra of CO, were attributed to the R branch and P branch of C 0 2 sorbed i