表面在气体透过聚合物膜传输中的作用。

The Role of Surfaces in Gas Transport Through Polymer Membranes.

作者信息

Firpo Giuseppe, Angeli Elena, Guida Patrizia, Pezzuoli Denise, Repetto Diego, Repetto Luca, Valbusa Ugo

机构信息

Nanomed Labs, Physics Department, University of Genova, Via Dodecaneso, 33, 16146 Genova, Italy.

出版信息

Polymers (Basel). 2019 May 20;11(5):910. doi: 10.3390/polym11050910.

DOI:10.3390/polym11050910

PMID:31137564

原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC6572078/

Abstract

This paper describes a procedure to measure the permeability , diffusivity and rate of adsorption , thus determining the solubility and rate of desorption of He, N, O, CH, and CO 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 and .

摘要

本文描述了一种测量渗透率、扩散率和吸附速率的程序，从而确定氦气、氮气、氧气、甲烷和一氧化碳在聚二甲基硅氧烷（PDMS）膜上的溶解度和解吸速率。所描述的程序能够通过实验确定表征气体透过薄橡胶聚合物膜传输过程的所有物理量。实验在室温及1个大气压的跨膜压力下进行。结果与文献中的现有数据高度吻合，并提供了对……的评估。（原文中最后“offer an evaluation of and.”表述不完整，缺少具体评估对象）