用硝酸铈铵作引发剂,通过水溶液聚合法制得了玉米淀粉接枝丙烯酸高吸水性树脂。研究了交联剂及引发剂用量、中和度、反应温度以及反应时间等对吸水率的影响。得到的最佳反应条件为:交联剂和引发剂与丙烯酸的摩尔比分别为0.95×10-5...用硝酸铈铵作引发剂,通过水溶液聚合法制得了玉米淀粉接枝丙烯酸高吸水性树脂。研究了交联剂及引发剂用量、中和度、反应温度以及反应时间等对吸水率的影响。得到的最佳反应条件为:交联剂和引发剂与丙烯酸的摩尔比分别为0.95×10-5和4.8×1-0 3,中和度71%,反应温度45℃,反应时间2 h。制得的高吸水树脂在室温下30 m in每克吸蒸馏水和自来水分别约为其自身质量的1000和200倍。展开更多
The graft copolymerization of starch and methyl acrylate(MA) in three differentreaction systems, MA-CH3OH-H2O, aqueous solution, emulsion system has been carriedout. The composition of the grafted PMA in copolymer and...The graft copolymerization of starch and methyl acrylate(MA) in three differentreaction systems, MA-CH3OH-H2O, aqueous solution, emulsion system has been carriedout. The composition of the grafted PMA in copolymer and homopolymer PMA, the viscosity-average molecular weight of the graft copolymer, the graft efficiency and freqency and themicrostructure and mechanical property have been investigated. The biodegradable graftplastics with 60% starch was obtained.展开更多
文摘用硝酸铈铵作引发剂,通过水溶液聚合法制得了玉米淀粉接枝丙烯酸高吸水性树脂。研究了交联剂及引发剂用量、中和度、反应温度以及反应时间等对吸水率的影响。得到的最佳反应条件为:交联剂和引发剂与丙烯酸的摩尔比分别为0.95×10-5和4.8×1-0 3,中和度71%,反应温度45℃,反应时间2 h。制得的高吸水树脂在室温下30 m in每克吸蒸馏水和自来水分别约为其自身质量的1000和200倍。
文摘The graft copolymerization of starch and methyl acrylate(MA) in three differentreaction systems, MA-CH3OH-H2O, aqueous solution, emulsion system has been carriedout. The composition of the grafted PMA in copolymer and homopolymer PMA, the viscosity-average molecular weight of the graft copolymer, the graft efficiency and freqency and themicrostructure and mechanical property have been investigated. The biodegradable graftplastics with 60% starch was obtained.
