Solubility and diffusion of carbon dioxide in polymers

被引：65

作者：

Webb, KF ^{[1
]}

Teja, AS ^{[1
]}

机构：

[1] Georgia Inst Technol, Sch Chem Engn, Atlanta, GA 30332 USA

来源：

FLUID PHASE EQUILIBRIA | 1999年 / 158卷

关键词：

supercritical; carbon dioxide; polymer; absorption; solubility; diffusion;

D O I：

10.1016/S0378-3812(99)00153-3

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

We have measured the solubility and diffusion coefficients of carbon dioxide in four polymer substrates at 313 K and 10.5 MPa. The polymer substrates included poly(chlorotrifluoroethylene!, cross-linked poly(dimethylsiloxane), poly(methylmethacrylate), and cross-linked polystyrene. Solubilities were determined from maximum mass gain measurements when a film of each polymer was contacted with carbon dioxide, and diffusion coefficients were determined from timed absorption experiments. The highest solubility and the highest diffusivity were obtained with poly(methylmethacrylate). (C) 1999 Elsevier Science B.V. All rights reserved.

引用

页码：1029 / 1034

页数：6

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