| Synthesis of Hydroxypropyl Guar Gum by Phase Transfer Catalysis |
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| 引用本文： | RongChunXIONG MingZhuCHANC JianMingCHEN NanZHOU GangWEI. Synthesis of Hydroxypropyl Guar Gum by Phase Transfer Catalysis[J]. 中国化学快报, 2005, 16(4): 545-546 |
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| 作者姓名： | RongChunXIONG MingZhuCHANC JianMingCHEN NanZHOU GangWEI |
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| 作者单位： | BeijingUniversityofChemicalTechnology,Beijing100029 |
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| 摘 要： | HGG (Hydroxypropyl guar gum) was synthesized by phase transfer catalysis for the first time. The effects of alkalinity, phase transfer catalyst, etherification, pH value, temperature,reaction time and stirring speed were investigated. An optimal synthetic reaction technology was established, namely, dose of guar gum is 100 g, propylene oxide 40-50 g, HTAC (hexadecyl trimethyl ammonium chloride ) 1.3-1.7 g, pH value 10-10.5, temperature 45-50~C, and reaction time 3-4 hours. The result shows that the improved HGG has high viscosity. Its dissolution speed, content of insoluble residue, colloid light transparency and stability are apparently superior to guar flour.
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| 关 键 词： | 合成方法 相转移催化剂 羟基丙烷基瓜耳树胶 聚合物 化学改性技术 |
Synthesis of Hydroxypropyl Guar Gum by Phase Transfer Catalysis |
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| Rong Chun XIONG,Ming Zhu CHANG,Jian Ming CHEN,Nan ZHOU,Gang WEI Beijing University of Chemical Technology,Beijing. Synthesis of Hydroxypropyl Guar Gum by Phase Transfer Catalysis[J]. Chinese Chemical Letters, 2005, 16(4): 545-546 |
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| Authors: | Rong Chun XIONG Ming Zhu CHANG Jian Ming CHEN Nan ZHOU Gang WEI Beijing University of Chemical Technology Beijing |
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| Affiliation: | Rong Chun XIONG,Ming Zhu CHANG,Jian Ming CHEN,Nan ZHOU,Gang WEI* Beijing University of Chemical Technology,Beijing 100029 |
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| Abstract: | |
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| Keywords: | Guar gum hydroxypropyl guar gum chemical modification phase transfer catalysis. |
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