| 机械活化淀粉反相乳液聚合动力学及机理探讨 |
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| 引用本文： | 谢新玲,童张法,黄祖强,张友全,廖丹葵. 机械活化淀粉反相乳液聚合动力学及机理探讨[J]. 高分子材料科学与工程, 2009, 25(4): 12-15 |
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| 作者姓名： | 谢新玲 童张法 黄祖强 张友全 廖丹葵 |
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| 作者单位： | 广西大学化学化工学院,广西,南宁,530004;广西大学化学化工学院,广西,南宁,530004;广西大学化学化工学院,广西,南宁,530004;广西大学化学化工学院,广西,南宁,530004;广西大学化学化工学院,广西,南宁,530004 |
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| 基金项目： | 国家自然科学基金资助项目(20666001) |
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| 摘 要： | 以过硫酸铵为引发剂,研究了经机械活化预处理的玉米淀粉与丙烯酰胺在反相乳液体系中的接枝共聚反应动力学,分别考察了引发剂浓度、单体浓度、淀粉乳浓度和乳化剂浓度等对表观聚合速率的影响。结果表明,在本实验考察范围内的动力学关系式为Rp∞[I]0.84[M]1.12[St]1.07[E]0.54。推导并验证了该反应的表观动力学方程和反应机理,双基终止与单基终止过程同时存在,实验结果与理论推导基本符合。
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| 关 键 词： | 机械活化 淀粉 反相乳液 接枝共聚 动力学 聚合速率 |
Kinetics of Graft Co-Polymerization of Acrylamide onto Mechanically-Activated Starch in Inverse Emulsion |
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| XIE Xin-ling,TONG Zhang-fa,HUANG Zu-qiang,ZHANG You-quan,LIAO Dan-kui. Kinetics of Graft Co-Polymerization of Acrylamide onto Mechanically-Activated Starch in Inverse Emulsion[J]. Polymer Materials Science & Engineering, 2009, 25(4): 12-15 |
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| Authors: | XIE Xin-ling TONG Zhang-fa HUANG Zu-qiang ZHANG You-quan LIAO Dan-kui |
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| Affiliation: | School of Chemistry and Chemical Engineering;Guangxi University;Nanning 530004;China |
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| Abstract: | The graft copolymer of starch is a new kind of macromolecule material.The kinetics of graft co-polymerization of acrylamide onto pretreated maize starch by mechanical activation in inverse emulsion system was investigated with ammonium persulfate as the initiator and a mixture of Span 80/Tween 80 as the emulsifier.The effects of concentrations of initiator,monomer,starch,and emulsifier on the rate orders of graft co-polymerization were determined.The results show that the dependence of the polymerization ra... |
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| Keywords: | mechanical activation starch inverse emulsion graft co-polymerization kinetics polymerization rate |
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