反応染料水溶液の加水分解挙動

駒城 素子, 金田 知子, 林 雅子, 矢部 章彦, 飛田 満彦

doi:10.2115/fiber.29.12_t546

反応染料水溶液の加水分解挙動

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駒城素子

お茶の水女子大学家政学部
金田知子

お茶の水女子大学家政学部
林雅子

お茶の水女子大学家政学部
矢部章彦

お茶の水女子大学家政学部
飛田満彦

東京都立大学工学部

書誌事項

タイトル別名

KINETICS AND MECHANISM OF HYDROLYSIS OF REACTIVE DYES IN SOLUTION
ハンノウセンリョウスイヨウエキノカスイブンカイキョドウ

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説明

The kinetics and mechanism of alkaline hydrolysis of chlorotriazinyl reactive dyes containing imino groups have been studied at constant temperature over a range of pH values and dye concentrations by a paper chromatography.<br>The results obtained were explained in terms of the apparent second-order rate constant, and the hydrolysis was independent of dye concentration, but was dependent on pH of the dye liquor.<br>This could be explained by assuming that an acid-base equilibrium exists at imino bridged group of the dye. As is generally accepted, both values of dissociation constant (K) of imino bridged groups and the true rate constant (k) were expected to be increased by the substituent, having electron donating character. And this substitution effect was found to be larger at meta position than at para position.