Synthesis of cationic hydrolyzed starch with high DS by dry process and use in salt-free dyeing
作者： Min Zhang , Ben-Zhi Ju , Shu-Fen Zhang , Wei Ma , Jin-Zong Yang
DOI: 10.1016/J.CARBPOL.2006.09.011
关键词: Maize starch 、 Organic chemistry 、 Hydrolysis 、 Cationic polymerization 、 Reactive dye 、 Dyeing 、 Ammonium chloride 、 Sodium hydroxide 、 Chemistry 、 Starch
摘要: Cationic hydrolyzed starch was prepared by maize with 2,3-epoxypropyltrimethyl ammonium chloride dry process. Experiments showed that 80 °C, 1 h, 0.1:1 of molar ratio sodium hydroxide to cationizing reagent were suitable for cationization, and high degree substitution cationic obtained. The structures the characterized IR spectroscopy, scanning electronic microscopy X-ray diffraction. synthesized employed in salt-free dyeing reactive dyes. It dye fixation level obtained pretreating cotton low viscosity DS. Besides, wash fastness rub not affected. highest is higher than conventional 20.3%, 0.9% 18.4% C.I. Reactive Red 2, Blue 19 Yellow 145, respectively.
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