| 焦磷酸络锰三价离子引发淀粉-丙烯酰胺的接枝共聚合 |
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| 引用本文： | 冯震国.焦磷酸络锰三价离子引发淀粉-丙烯酰胺的接枝共聚合[J].高等学校化学学报,1990,11(2):215-217. |
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| 作者姓名： | 冯震国 |
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| 作者单位： | 南京化工学院化工系 |
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| 摘 要： | 将带有极性基团的乙烯类单体通过化学接枝到淀粉或纤维素之类的天然多糖上,可作为絮凝剂、脱除剂和粘接剂1～3],近来已发展为高吸水性材料和石油分离剂4]。用Ce4+引发乙烯类单体接枝到淀粉和纤维素类已有报道5]。Rayonier用Mn3+的焦磷酸盐络合物引发接枝乙烯类单体至纤维素及其衍生物上6];Cenita等用Mn3+引发MMA、AN接枝淀粉7]。本文以焦磷酸络锰离子(Mn3+)作引发剂、丙烯酰胺(AM)为单体、淀粉为接枝基体进行接枝共聚,这一工作目前在国内外尚未见报道。
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| 关 键 词： | 焦磷酸络锰三价离子引发 淀粉 丙烯酰胺 接枝共聚 |
| 收稿时间： | 1988-07-06 |
Graft Copolymerization of Starch-acrylamide Initiated by Manganic Pyrophosphate Complex |
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| Feng Zhenguo.Graft Copolymerization of Starch-acrylamide Initiated by Manganic Pyrophosphate Complex[J].Chemical Research In Chinese Universities,1990,11(2):215-217. |
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| Authors: | Feng Zhenguo |
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| Institution: | Department of Chemical ENgineering, Nanjing Institute of Chemical Technology, Nanjing |
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| Abstract: | Aseries of starch-polyacrylamide graft copolymers (ST-g-PAM) were prepared by Mn3+-initiated graft copolymerizations of acrylamide (AM) onto starch (ST) dissolved in water at 30℃. The effects of solution acidity and concentrations of monomer, starch and initiator on graft copolymer-ization were investigated.The copolymerization was much more susceptible to pHvalue of the reaction solution.Reaction mechanisms responsible for the initiation of graft copolymerization and homopolymeriza-tion of AMare proposed and discussed. |
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| Keywords: | Manganic pyrophosphate complex initiation Starch Acrylamide Grafting copolymeriza-tion |
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