Novel yellow azo-anthraquinone dyes for polylactide fibres: effects of alkyl chain length
Novel yellow azo-anthraquinone dyes for polylactide fibres: effects of alkyl chain length
复制标题
DOI：
10.1111/j.1478-4408.2011.00354.x
复制
发表时间：
2012-04-01
影响因子：
1.8
通讯作者：
Freeman, Harold S.
中科院分区：
文献类型：
--
作者：
Lu, Lihua;He, Liang;Freeman, Harold S.
为了提高分散染料在聚乳酸纤维上的上染率，以1-氨基蒽醌为原料，分四步合成了1-(4‘-Alkylaminosulphurylphenyl)-3-methyl-5-pyrazolonyl偶氮杂多酚染料。其结构经燃烧分析、质谱学、红外光谱和质子核磁共振谱确证。基于人工智能的分子模拟研究结果表明，随着烷基链长的增加，LogP、分子体积和平面形状都会增加。将其应用于聚乳酸纤维，可获得良好的百分疲劳值和良好的耐晒牢度等级。研究还发现，苯环上的烷基链性质对染料颜色影响不大，但对上染率和洗涤牢度有明显影响。
1-(4'-Alkylaminosulphurylphenyl)-3-methyl-5-pyrazolonyl azoanthraquinone dyes were prepared in four steps from 1-aminoanthraquinone, as an approach to enhancing the exhaustion levels of disperse dyes on polylactide fibres. Their structures were confirmed from combustion analysis and mass spectrometry, infrared and proton nuclear magnetic resonance spectroscopy. Results from artificial intelligence-based molecular modelling studies showed that increasing alkyl chain length gave an increase in LogP, molecular volume and aplanar shape. Their application to polylactide fibres led to both good per cent exhaustion values and good light fastness ratings. It was also found that the nature of the alkyl chains attached to the phenyl ring had little influence on dye colour, but clearly influenced per cent exhaustion and wash fastness.