N,N-二亚乙基双丙烯酰胺与魔芋葡甘聚糖接枝共聚反应的研究

摘要

[Objective] In order to further develop and use konjac resources, its viscosity and water-solubility was improved. [Method]Cerium ammonium nitrate ( NH4) 2 Ce (NO3) 6 initiated graft copolymerization of N, N-diethylenediacrylamide onto Konjac glucomannan. The reaction rule and the partial nature of graft copolymer were studied. [ Result]The best conditions of grafting copolymerization reaction were as follows; N, N-diethylenediacrylamide concentration of 1. 5 mol/L, cerium ammonium nitrate concentrations of 8.0 mmol/L, reaction temperature of 60 ℃ , reaction time of 2. 5 h. [ Conclusion ] Water-solubility and solution viscosity properties of graft copolymer was improved, and the graft copolymer could be used for industrial thickener and starching agent.%[目的]为了进一步开发利用魔芋资源,改善其黏度及水溶性.[方法]硝酸铈铵引发魔芋葡甘聚糖与N,N-二亚乙基双丙烯酰接枝共聚,并对接枝共聚物的部分性质进行研究.[结果]接枝共聚反应最佳条件为:N,N-二亚乙基双丙烯酸胺浓度1.5 mol/L,硝酸铈铵浓度8.0 mmol/L,反应温度60℃,反应时间2.5h.[结论]接枝共聚物的水溶性及溶液黏度增强,可用作工业增稠剂和上浆剂.