Zhenguo Liu, W. Cao, Yanhui Sun
Dec 1, 1997
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Journal
Polymer International
Abstract
Without addition of any metal ions or other catalysts, 1-chloroanthraquinone reacts readily with 6-aminocaproic acid or hexamethylenediamine in dimethylsulphone as solvent to give 1-(6-aminocaproic acid)anthraquinone and 1-(6-aminohexyl)amino]anthraquinone, respectively. 1,5-Dichloro-or 1,8-dichloroanthraquinone can also be used in this reaction to give bis-substituted derivatives of anthraquinone. As a kind of functional dye, which contains −COOH or −NH2 groups and dissolves easily in nylon melt, the products were designed for preparing coloured nylon by polycondensation with caprolactam or nylon-6,6 salt. Nylon fibres with different colours were obtained directly. ©1997 SCI