木薯淀粉接枝丙烯酸的研究

A Reasearch in the Graft Copolymerization of Acrylic Acid onto Cassava Starch

研究了木薯淀粉与丙烯酸的接枝共聚台反应．选用（ＮＨ４）２Ｓ２Ｏ８、ＦｅＣｌ３、Ｈ２Ｏ２－ＦｅＳＯ４、ＫＭｎＯ４等不同引发剂作比较，结果表明过硫酸按是一种很有开发前景的引发剂，其最佳反应条件是丙烯酸浓度为１Ｍ，反应温度为５０℃，反应时间为２ｈ．对所得共聚物的吸水量及保水率进行了测试．

This paper reported the graft copolymerization of acrylic acid (AA) onto cassava starch by (NH4)2S2O8 among the four initiators and the graft efficiency affected by three different initiators. We found that (NH4)2S2O8 showed a hopefUl fUture. Results showed that the condition of reaction was the best when the concentration of AA waS IM, the temperature was 50℃, the time was 2h. The abilities of absorbing water and keeping water of the product were determined.