Affinity of disperse dyes on poly(ethylene terephthalate) in non-aqueous media. Part 2: effect of substituents

被引：17

作者：

Kim, TK

Son, YA ^{[1
]}

机构：

[1] Chungnam Natl Univ, Dept Text Engn, Taejon 305764, South Korea

[2] Korea Dyeing Technol Ctr, Taegu 703834, South Korea

来源：

DYES AND PIGMENTS | 2005年 / 66卷 / 01期

关键词：

adsorption; poly(ethylene terephthalate); disperse dyes; non-aqueous media; solubility;

D O I：

10.1016/j.dyepig.2004.08.009

中图分类号：

O69 [应用化学];

学科分类号：

081704 ;

摘要：

Adsorption properties of the 10 kinds of disperse dyes having different substituents were examined using several representative non-aqueous media on to poly(ethylene terephthalate) substrates. The dye adsorption amounts in pentane medium representing alkanes were much higher than those in the other non-aqueous media. In pentane medium, as the hydrophobicity of the dyes resulting from the substituents of dye molecules increased, the solubility of the dyes increased and the corresponding dye adsorption greatly decreased. This finding was coincident with the results from the previous study that the adsorption amount of disperse dyes on to substrates was inversely proportional to the solubility of the dyes. Furthermore, the hydrophobicity and the hydrophilicity of the dyes were discussed in terms of the electric dipole moments which are obtained by a semiempirical method using molecular modeling software. (C) 2004 Elsevier Ltd. All rights reserved.

引用

页码：19 / 25

页数：7

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