Effect of disperse dye structure on dye sorption onto PLA fiber

被引：66

作者：

Karst, David

Nama, Digvijay

Yang, Yiqi ^{[1
]}

机构：

[1] Univ Nebraska, Dept Text Clothing & Design, Lincoln, NE 68583 USA

[2] Univ Nebraska, Dept Biol Syst Engn, Lincoln, NE 68583 USA

来源：

JOURNAL OF COLLOID AND INTERFACE SCIENCE | 2007年 / 310卷 / 01期

关键词：

adsorption; disperse dyes; functional groups; intermolecular interactions; molecular modeling; poly(lactic acid); polylactide; PLA;

D O I：

10.1016/j.jcis.2007.01.037

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

The effect of the structure of various disperse dyes on their percentage sorption onto polylactide (PLA) is explained using molecular modeling. The interaction energies between the dyes and PLA have been calculated, and a linear equation has been developed to predict the percentage sorption on PLA based on the dye-PLA interaction energy. The predicted percentage sorption for a dye is shown to agree with its experimentally obtained percentage sorption on commercial PLA fabric and on PLA fiber extruded in our laboratory. Within the dyes, the functional groups that form the strongest interactions with PLA are -N(C2H4OCOCH3)(2), -(CO)(2)NC3H6OCH3, -SO2NHC6H5, -NO2, -CN(NH)C6H4, and -CH(CO)(2)C6H4, and the groups that form the weakest interactions with PLA are -Br and -Cl. (c) 2007 Elsevier Inc. All rights reserved.

引用

页码：106 / 111

页数：6

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