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Synthesis of Polycondensable Anthraquinone Dyes and ColouredNylon Fibres: I

✍ Scribed by Liu, Zhenguo; Cao, Weixiao; Sun, Yanhui; Su, Aaron C. L.; Liotta, Charles L.

Publisher
John Wiley and Sons
Year
1996
Tongue
English
Weight
237 KB
Volume
41
Category
Article
ISSN
0959-8103

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✦ Synopsis

The reaction of dihydroxyanthraquinone (DHA) and amines in the presence of catalyst has been reported. We found that DHA reacted easily with hexamethylenediamine in chloroform or toluene without addition of any catalyst, and mono-or dihexamethylenediamine-substituted anthraquinone, a violet green colourant, was formed. Using the colourant as a comonomer in the polycondensation of caprolactam or nylon-6,6 salt, coloured nylon-6 and nylon-6,6 fibres were prepared.

K e y words: polycondensation,

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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-Dichloroor 1,8-dichloroa

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A series of 1,5-diaryl-and 1,8-diaryl-substituted anthraquinone dyes, which contain wCOOH or groups, were prepared. The aryl-substituted wNH 2 anthraquinone dyes possess excellent thermostability and will keep their original colour in polycondensation with caprolactam at 260È280Β‘C. With di †erent ar