Permeation of Oxygen and Nitrogen Gases through Poly(ethylene-co-vinyl acetate) Membranes

被引：2

作者：

Kumar, S. Anil ^{[2
]}

Muralidharan, M. N. ^{[1
,2
]}

Kumaran, M. G. ^{[3
]}

Aprem, Abi Santhosh ^{[4
]}

Thomas, Sabu ^{[5
]}

机构：

[1] Cochin Univ Sci & Technol, Dept Polymer Sci & Rubber Technol, Cochin 682022, Kerala, India

[2] NSS Coll, Dept Chem, Palakkad, Kerala, India

[3] Rubber Res Inst India, Kottayam, Kerala, India

[4] Hindustan Latex Ltd, Thiruvananthapuram, Kerala, India

[5] Mahatma Gandhi Univ, Sch Chem Sci, Kottayam 686560, Kerala, India

来源：

INTERNATIONAL JOURNAL OF POLYMERIC MATERIALS | 2008年 / 57卷 / 12期

关键词：

gases; permeation; poly(ethylene vinyl acetate);

D O I：

10.1080/00914030802341679

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 transport of oxygen and nitrogen gases through uncrosslinked and crosslinked poly(ethylene-co-vinyl acetate) membranes has been analyzed. Poly(ethylene-co-vinyl acetate) was crosslinked by dicumyl peroxide and benzoyl peroxide. Neat sample showed a lower permeation coefficient due to the crystalline nature. The crystalline nature was supported by X-ray diffraction analysis. The difference in the permeation behavior of the two crosslinked samples was correlated with crosslink density. Crosslink density was calculated using equilibrium sorption method. Differential scanning calorimetry analysis also supports the different permeation behavior of the crosslinked samples. The O-2/N-2 selectivity of the membranes was estimated. The influence of the crosslink density and size of penetrants on permeation were analyzed. The effect of free volume on the gas barrier properties was investigated by positron annihilation lifetime spectroscopy.

引用

页码：1104 / 1118

页数：15

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