알킬아닐린을 디아조성분으로 활용한 디스아조계 초소수성 적색염료의 합성
Synthesis of Super Hydrophobic Disazo Red Dyes Using Alkylanilines as Diazo Components
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초록
Novel super hydrophobic disazo red dyes were synthesized to improve light fastness of the primary monoazo reddye of previous study on polyolefin fibers such as polypropylene and ultra high molecular weight polyethylene fibers. 4-Alkylanilines were diazotized and then coupled to 2,5-dimethylaniline to produce dye intermediates which were then furtherused to synthesize final disazo red dyes by diazoization and coupling to β-naphthol. Considering both affinity of the dyestoward both polyolefin fibers and color fastnesses, the decyl-substituted dye was determined as the optimum dye. Thedecyl-substituted disazo red dye exhibited good dyeabiity on both polyolefin fibes and almost the same color values as theprevious primary monoazo red dye. Light fastness on ultra high molecular weight polyethylene fibers was improved up to rating3~4 compared to rating 2~3 of the previous primary monoazo red dye.
Abstract
Novel super hydrophobic disazo red dyes were synthesized to improve light fastness of the primary monoazo reddye of previous study on polyolefin fibers such as polypropylene and ultra high molecular weight polyethylene fibers. 4-Alkylanilines were diazotized and then coupled to 2,5-dimethylaniline to produce dye intermediates which were then furtherused to synthesize final disazo red dyes by diazoization and coupling to β-naphthol. Considering both affinity of the dyestoward both polyolefin fibers and color fastnesses, the decyl-substituted dye was determined as the optimum dye. Thedecyl-substituted disazo red dye exhibited good dyeabiity on both polyolefin fibes and almost the same color values as theprevious primary monoazo red dye. Light fastness on ultra high molecular weight polyethylene fibers was improved up to rating3~4 compared to rating 2~3 of the previous primary monoazo red dye.
참고문헌 (19)
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