%0 Journal Article
%T The Role of Surfaces in Gas Transport Through Polymer Membranes
%J Polymers | An Open Access Journal from MDPI
%D 2019
%R https://doi.org/10.3390/polym11050910
%X This paper describes a procedure to measure the permeability P, diffusivity D, and rate of adsorption k1, thus determining the solubility S and rate of desorption k2 of He, N 2, O 2, CH 4, and CO 2 on a polydimethylsiloxane (PDMS) membrane. The described procedure is able to determine experimentally all the physical quantities that characterize the gas transport process through a thin rubber polymer membrane. The experiments were carried out at room temperature and at a transmembrane pressure of 1 atm. The results are in good agreement with the available data in the literature and offer an evaluation of k1 and k2. View Full-Tex
%U https://www.mdpi.com/2073-4360/11/5/910