Synthesis and flocculation behavior of cationic konjac glucomannan containing quaternary ammonium substituents
Synthesis and flocculation behavior of cationic konjac glucomannan containing quaternary ammonium substituents
复制标题
DOI：
10.1002/app.31170
复制
发表时间：
2010-02
影响因子：
3
通讯作者：
Dating Tian;Xiong Wu;Cheng-Mei Liu;H. Xie
中科院分区：
文献类型：
--
作者：
Dating Tian;Xiong Wu;Cheng-Mei Liu;H. Xie
以魔芋葡甘聚糖季铵盐(KGM)和2，3-环氧丙基三甲基氯化铵为原料，采用干燥法制备了魔芋葡甘聚糖季铵盐衍生物。考察了加水量、碱催化剂用量、反应温度、反应时间对取代度的影响，确定了最佳实验条件。此外，通过考察絮凝剂用量、pH值、盐浓度、温度和沉淀时间对絮凝效果的影响，用分光光度法评价了KGM阳离子衍生物在1.0%高岭土悬浮液中的絮凝性能。结果表明，合成的阳离子葡甘聚糖有可能成为一种高效的絮凝剂。《威利期刊》公司，《应用波利姆科学》，2010
A quaternary ammonium derivative of konjac glucomannan (KGM) was prepared by a dry process from KGM and 2,3-epoxypropyl trimethylammonium chloride. We determined the optimization of the experimental conditions by studying on the effects of the water amount, alkaline catalyst amount, reaction temperature, and reaction time on the degree of substitution. In addition, the flocculation characteristics of the cationic derivative of KGM were evaluated in a 1.0% kaolin suspension with spectrophotometry via investigation of the influence of the flocculant amount, pH, salt concentration, temperature, and settling time on the flocculation. The results show that the synthesized cationic KGM could potentially be used as a high-performance flocculating agent. © 2009 Wiley Periodicals, Inc. J Appl Polym Sci, 2010