| Ce~(4+)引发聚乙烯醇接枝甲基丙烯酸甲酯 |
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| 引用本文： | 张玉红,邹其超,袁建军,何培新. Ce~(4+)引发聚乙烯醇接枝甲基丙烯酸甲酯[J]. 胶体与聚合物, 2004, 22(4): 14-16 |
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| 作者姓名： | 张玉红 邹其超 袁建军 何培新 |
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| 作者单位： | 湖北大学化学与材料科学学院,武汉,430062 |
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| 摘 要： | 以硝酸铈铵 (CAN)作引发剂 ,在水介质中聚乙烯醇 (PVA)接枝聚合甲基丙烯酸甲酯 (MMA) ,用红外光谱证实接枝物的结构 ,讨论了单体浓度、引发剂浓度、p H值、反应时间及温度对接枝率的影响 ,最佳反应条件为 PVA1 .0 g/l,CAN3 .1 6× 1 0 - 3mol/l,HNO30 .1 88mol/l,MMA0 .469mol/l,45℃ ,4h。
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| 关 键 词： | 聚乙烯醇 甲基丙烯酸甲酯 硝酸铈铵 接枝共聚 |
| 修稿时间： | 2002-04-14 |
Graft Polymerization of Methyl Methacrylate onto Polyvinyl Alcohol Using Ce4+as the Initiator |
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| Zhang Yuhong Zou Qichao Yuan Jianjun He Peixin. Graft Polymerization of Methyl Methacrylate onto Polyvinyl Alcohol Using Ce4+as the Initiator[J]. Chinese Journal of Colloid and Polymer, 2004, 22(4): 14-16 |
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| Authors: | Zhang Yuhong Zou Qichao Yuan Jianjun He Peixin |
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| Affiliation: | School of Chemistry and Material Science Hubei University Wuhan 430062 |
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| Abstract: | Methyl Methacrylate (MMA) was graft polymerized onto polyvinyl alcohol (PVA) using ceric ammonium nitrate as initiator in aqueous medium. The grafting efficiency of MMA was studied as a function of monomer and initiator concentration, pH, reactive time and temperature. The probable reasons for the influence of reaction variable on the observed trend of MMA towards grafting have been discussed. To avoid the complexation of water molecules with Ce 4+ ions, the concentration of the nitric acid was taken to be more than the concentration of ceric ions. Infrared spectroscopy was used for the confirmation of graft copolymer formation. |
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| Keywords: | Polyvinyl alcohol Methyl methacrylate Ceric ammonium nitrate Graft polymerization |
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