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| 疏水缔合阳离子淀粉的合成研究 | |
| 引用本文： | 刘祥义,徐晓军,杨宇明.疏水缔合阳离子淀粉的合成研究[J].林产化学与工业,2006,26(2):87-92. |
| 作者姓名： | 刘祥义 徐晓军 杨宇明 |
| 作者单位： | 1. 昆明理工大学,环境科学与工程学院,云南,昆明,650093;西南林学院,基础部,云南,昆明,650224 2. 昆明理工大学,环境科学与工程学院,云南,昆明,650093 3. 西南林学院,基础部,云南,昆明,650224 |
| 摘 要： | 本研究以环己烷为连续相,Span 80/Tween 80为分散剂,采用氧化还原引发体系,通过反相悬浮聚合技术,合成疏水缔合阳离子淀粉接枝共聚物。研究了反应温度,引发剂用量,反应时间对接枝性能的影响及溶解性能。并用IR、X衍射对共聚物进行了表征。结果表明:采用氧化还原引发剂可使聚合反应低温快速进行,在m(St)∶m(AM)∶m(DMDACC)∶m(OA)为4∶7.4∶1.5∶0.6时,引发剂用量3.1 mmol/L,30℃反应3 h,单体转化率92.6%,接枝率53.8%,粘均相对分子质量(MV)3.26×106。 |
| 关 键 词： | 疏水缔合阳离子淀粉 接枝共聚反应 反相悬浮聚合 |
| 文章编号： | 0253-2417（2006）02-0087-06 |
| 收稿时间： | 10 9 2005 12:00AM |
| 修稿时间： | 2005-10-09 |
Study on Synthesis of Hydrophobically Associated Cationic Starch |
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| LIU Xiang-yi,XU Xiao-jun,YANG Yu-ming.Study on Synthesis of Hydrophobically Associated Cationic Starch[J].Chemistry & Industry of Forest Products,2006,26(2):87-92. | |
| Authors: | LIU Xiang-yi XU Xiao-jun YANG Yu-ming |
| Institution: | LIU Xiang-yi~ |
| Abstract: | Hydrophobically associated cationic starch(HACS) was synthesized by inverse suspension polymerization, in which the continuous phase was cyclohexane, dispersant was Span 80-Tween 80 and initiator was redox initiator. Effects of dispersant, reaction temperature and time on soluble properties and the grafting properties were discussed. The grafted product was characterized with IR and X-ray diffraction. The experiment results showed that copolymerization can be proceeded rapidly at low temperature, and the optimum reaction condition was as follows: ratio of m(St):m(AM):m(DMDACC):m(OA) 4:7.4:1.5:0.6, content of initiator 3.1 mmol/L, grafting temperature 30 ℃, reaction time 3 h. The monomer conversions is 92.6 % , grafting rate is 53.8 % and viscosity-average relative molecular weight (MV) is 3.26×106. |
| Keywords: | hydrophobically associated cationic starch graft copolymerization inverse suspension polymerization |
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