| 过渡金属乙酰丙酮配合物引发淀粉与烯基单体接枝共聚 |
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| 引用本文： | 于九皋,田汝川.过渡金属乙酰丙酮配合物引发淀粉与烯基单体接枝共聚[J].天津大学学报(自然科学与工程技术版),1993(6):71-77. |
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| 作者姓名： | 于九皋 田汝川 |
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| 作者单位： | 天津大学化学系，天津大学化学系，天津大学化学系 副教授，天津化工研究院 |
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| 摘 要： | 研究了Ｍｎ（Ⅲ）、Ｃｏ（Ⅲ）、Ｃｒ（Ⅲ）和Ｖ（Ⅳ）的乙酰丙酮配合物引发淀粉与ＭＭＡ、ＡＮ、ＡＭ和ＡＡ接枝共聚合反应的引发活性。实验表明，４种引发体系中，Ｍｎ（ａｃａｃ）３的引发活性最佳，它可以有效地引发淀粉与上述４种单体的接枝共聚合反应，并获得较高的ＰＧ；Ｃｏ（ａｃａｃ）３和Ｃｒ（ａｃａｃ）３仅对水溶性烯基单体ＡＭ、ＡＡ有良好的引发活性；Ｖｏ（ａｃａｃ）２对４种单体的引发活性均较低。４种单体中，水
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| 关 键 词： | 烯基单体 淀粉 接枝共聚 络合物 |
STUDY ON GRAFT COPOLYMERIZATION OF VINYL MONOMERS ONTO STARCH INITIATED BY ACETYLACETONATE COMPLEXES OF TRANSITION METALS |
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| Yu Jiugao Tian Ruchuan Liu Xiangdong.STUDY ON GRAFT COPOLYMERIZATION OF VINYL MONOMERS ONTO STARCH INITIATED BY ACETYLACETONATE COMPLEXES OF TRANSITION METALS[J].Journal of Tianjin University(Science and Technology),1993(6):71-77. |
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| Authors: | Yu Jiugao Tian Ruchuan Liu Xiangdong |
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| Institution: | Dept. of Chemistry |
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| Abstract: | This paper studies the initiating activation of grafting methyl methacrylate, acrylonitrile, acrylamide and acrylic acid onto starch using Mn(acac)_3, Co(acac)_3, Cr(acac)_3 and VO(acac)_2 as initiators. Among the four initiators, Mn(acac)_3 is the best. It can initiate the four monomers to grafting onto starch effectively and the grafting percentage is quite high. Co(acac)_3 and Cr(acac)_3 exhibit good initiating activation only for the soluble vinyl monomers such as acrylamide and acrylic acid. The initiating activation of VO(acac)_2 is low for all these four monomers. By comparison, the soluble vinyl monomers are grafted more readily onto starch than the insoluble vinyl monomers. The maximum grafting percentage of acrylamide and acrylic acid are 324% and 426%, respectively. |
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| Keywords: | acetylacetonate complex vinyl monomer starch graft copolymerization |
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