| 吸水膨胀弹性体PVA-g-PBA的研究 |
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| 引用本文： | 张玉红,扈蓉,嵇春红,何培新.吸水膨胀弹性体PVA-g-PBA的研究[J].胶体与聚合物,2004,22(1):17-19. |
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| 作者姓名： | 张玉红 扈蓉 嵇春红 何培新 |
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| 作者单位： | 湖北大学化学与材料科学学院,湖北,武汉,430062 |
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| 摘 要： | 在水介质中.在氮气保护下以硝酸铈铵(CAN)为引发剂,将丙烯酸丁酯(BA)接枝到聚乙烯醇(PVA)上,制得水膨胀弹性体PVA—g—PBA。通过红外光谱证实了接枝物的形成。讨论了PVA浓度、单体浓度、引发剂浓度和反应温度对接枝物接枝率(G％)的影响。结果表明随PVC浓度增大,接技率降低.PVA2.5×10-4mol/L.BA]0.702mol/l、CAN]0.01mol/L45℃接枝率较高.接枝率越高其吸水膨胀率越低,8h达吸水平衡,最大吸水率为165.1％。
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| 关 键 词： | 水膨胀弹性体 接枝共聚反应 硝酸铈铵 丙烯酸丁酯 聚乙烯醇 |
| 修稿时间： | 2003年11月11 |
Synthesis and Characterization of Water-Swellable Elastomer PVA-g-PBA |
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| Zhang Yuhong Hu Rong Gi Chunhong He Peixin.Synthesis and Characterization of Water-Swellable Elastomer PVA-g-PBA[J].Chinese Journal of Colloid and Polymer,2004,22(1):17-19. |
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| Authors: | Zhang Yuhong Hu Rong Gi Chunhong He Peixin |
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| Affiliation: | Faculty of Chemistry and Material Science Hubei University Wuhan 430062 |
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| Abstract: | A Water - Swellable Elastomer was prepared by grafting Butyl Acrylate(BA) onto Poly (vinyl alcohol) (PVA) with Ceric Ammonium Nitrate (CAN) as an initiator under N2 in aqueous medium. The formation of graft copolymer was confirmed by means of IR. The influences of PVA concentration,, monomer concentration., initiator concentration and reaction temperature on the percentage of grafting have been discussed. The water - swelling behaviors of graft copolymer were also studied. |
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| Keywords: | Water -Swellable Rubber Graft Copolymerization Ceric Ammonium Nitrate Butyl Acrylate Poly (vinyl alcohol) |
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