Gas permeation and diffusion in cross-linked poly(ethylene glycol diacrylate)

被引：145
|
作者：
Lin, Haiqing
Freeman, Benny D. [1 ]
机构：
[1] Univ Texas, Dept Chem Engn, Austin, TX 78758 USA
[2] Univ Texas, Ctr Energy & Environm Resources, Austin, TX 78758 USA
来源：
MACROMOLECULES | 2006年 / 39卷 / 10期
关键词：
D O I：
10.1021/ma051686o
中图分类号：
O63 [高分子化学（高聚物）];
学科分类号：
070305 ; 080501 ; 081704 ;
摘要：
The permeability of cross-linked poly( ethylene glycol diacrylate) (XLPEGDA) to He, H-2, O-2, N-2, CO2, CH4, C2H4, C2H6, C3H6, and C3H8 was determined at temperatures ranging from - 20 to + 45 degrees C and at fugacities up to approximately 15 atm for some gases. Diffusion coefficients of CO2 and hydrocarbons were calculated as a function of temperature and local penetrant concentration. The effect of temperature and fugacity on permeability and diffusivity is satisfactorily described using either an activated diffusion model or a free volume-based model.
引用
收藏
页码：3568 / 3580
页数：13
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