Dye solubility in supercritical carbon dioxide. Effect of hydrogen bonding with cosolvents

被引：42

作者：

Muthukumaran, P ^{[1
]}

Gupta, RB ^{[1
]}

Sung, HD ^{[1
]}

Shim, JJ ^{[1
]}

Bae, HK ^{[1
]}

机构：

[1] Auburn Univ, Dept Chem Engn, Auburn, AL 36849 USA

来源：

KOREAN JOURNAL OF CHEMICAL ENGINEERING | 1999年 / 16卷 / 01期

关键词：

dye solubility; supercritical carbon dioxide; hydrogen bonding; cosolvent; solubility enhancement;

D O I：

10.1007/BF02699013

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

The use of supercritical carbon dioxide is emerging as a potential method for achieving pollution- free dyeing. An important factor in supercritical fluid dyeing is the solubility of the dye in supercritical carbon dioxide. Our measurements show that the solubility of C. I. Disperse Red-60 dye in supercritical carbon dioxide is significantly enhanced upon addition of polar cosolvents: ethanol and acetone. The solubility enhancement is attributed to the formation of hydrogen bonds between cosolvent and dye molecules. Observed solubility behavior is correlated using dilute-solution theory with lattice-fluid-hydrogen-bonding model. Needed physical and hydrogen-bonding molecular parameters are estimated using the experimental data.

引用

页码：111 / 117

页数：7