| 摘要: |
| 为获得微波辐射合成淀粉多元接枝型互穿聚合物网络结构超吸水树脂,开发价格低廉、性能优越的超吸水树脂,以吸水倍数为指标,系统研究了影响淀粉-丙烯酸-丙烯酰胺-聚乙烯醇互穿网络型超吸水树脂的聚合条件,并通过SEM、FTIR对产物结构进行了表征。在微波辐射条件下,淀粉与丙烯酸、丙烯酰胺、聚乙烯醇接枝共聚反应的最佳工艺条件为:反应体系pH6.2;反应单体与淀粉的质量比为4∶1,丙烯酸与丙烯酰胺质量比2∶1,交联剂(N,N′-亚甲基双丙烯酰胺)与单体(丙烯酸与丙烯酰胺)质量比0.015,引发剂(过硫酸钾)与单体(丙烯酸与丙烯酰胺)质量比0.09,淀粉与聚乙烯醇质量比5∶1,微波功率420 W,辐射时间120 s。所得产物吸水倍数较高,其中无离子水吸收倍数为891,0.9 g/L的NaCl溶液的吸收倍数为153。 |
| 关键词: 微波辐射 淀粉多元共聚 互穿聚合物网络 吸水倍数 超吸水树脂 |
| DOI：10.11841/j.issn.1007-4333.2009.03.067 |
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| 基金项目:教育部留学回国人员科研启动基金资助项目(教外司留2006331) |
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| Synthesis of multi-grafted interpenetrating polymer network structure starch with super water Absorption by microwave radiation |
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| Abstract: |
| In order to develop low cost,high performance super Absorbent polymer(SAP),we used microwave radiation to synthesize multi-grafted starch of interpenetrating polymer network(IPN) structure.Based upon water Absorption,we investigated the polymerization conditions of SAP by starch,acrylic acid(AA),acrylic amide(AM),polyvinyl alcohol(PVA),and characterized the structure of the polymer through scanning electronic microscopy(SEM) and infrared spectra(FTIR).It was found that,under microwave radiation,the optimum ... |
| Key words: microwave radiation multi-grafted starch interpenetrating polymer network Absorbent capacity super Absorbent polymer |
