GRAFT-POLYMERIZATION OF ACRYLAMIDE ONTO MAIZE STARCH USING POTASSIUM PERSULFATE AS INITIATOR
GRAFT-POLYMERIZATION OF ACRYLAMIDE ONTO MAIZE STARCH USING POTASSIUM PERSULFATE AS INITIATOR
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DOI：
10.1002/apmc.1993.052130106
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发表时间：
1993-12-01
期刊：
影响因子：
--
通讯作者：
HEBEISH, A
中科院分区：
文献类型：
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作者：
KHALIL, MI;MOSTAFA, KM;HEBEISH, A
以过硫酸钾为引发剂，在引发剂浓度、单体浓度、聚合时间、温度和液比等条件下，研究了丙烯酰胺（Aam）在玉米淀粉上的接枝聚合。在此基础上，确定了淀粉接枝丙烯酰胺的适宜条件。这些条件也适用于其他单体接枝到玉米淀粉上。结果表明，丙烯酰胺接枝能力最强，丙烯酸接枝能力最差，丙烯腈和甲基丙烯酸接枝能力介于两者之间。含氮共聚物和含羧基共聚物的水溶性都随着单体含量的增加而增加，单体含量达到一定值后，水溶性又随之降低。
Graft polymerization of acrylamide (Aam) onto maize starch using potassium persulfate as initiator was investigated under different conditions including concentration of initiator and monomer, polymerization time and temperature and liquor ratio. Based on the results obtained, appropriate conditions for grafting acrylamide onto starch were established. These conditions were also used for grafting other monomers onto maize starch. Results obtained indicate that acrylamide acquires the highest graft ability while acrylic acid acquires the least, while acrylonitrile and methacrylic acid in between. The water solubility of both nitrogen- and carboxy-containing copolymers increases by increasing the monomer content up to a certain value, then it decreases.