Department of Applied Chemistry, Birla Institute of Technology, Mesra, Ranchi 835 215, Jharkhand, India.
Int J Biol Macromol. 2013 Oct;61:276-84. doi: 10.1016/j.ijbiomac.2013.07.003. Epub 2013 Jul 10.
Synthesis of graft copolymers under the influence of microwave radiation alone is a rapid, efficient, clean, cheap, convenient, energy-saving and green method. Grafting of poly(2-hydroxyethylmethacrylate) on agar backbone was carried out under the influence of microwave radiation. The synthesis is optimized in terms of percentage grafting and intrinsic viscosity, by varying the microwave irradiation time and monomer (2-hydroxyethylmethacrylate) concentration. The synthesized graft copolymers have been characterized by intrinsic viscosity measurement, FTIR spectroscopy, UV-spectroscopy, elemental analysis (C, H, N, & S), thermal studies and scanning electron microscopy (SEM). Flocculation efficacy of the synthesized graft copolymers was studied in 0.25% kaolin and 1% coal fine suspension, through 'jar test' procedure. Further, flocculation efficacy of the best grade, coagulant (alum) and agar were studied for possible application in remediation of metals from river water.
单独在微波辐射的影响下合成接枝共聚物是一种快速、高效、清洁、廉价、方便、节能和绿色的方法。在微波辐射的影响下，琼脂主链上的聚（2-羟乙基甲基丙烯酸酯）接枝。通过改变微波辐照时间和单体（2-羟乙基甲基丙烯酸酯）浓度，优化了接枝率和特性粘数。通过特性粘数测量、傅里叶变换红外光谱、紫外光谱、元素分析（C、H、N 和 S）、热研究和扫描电子显微镜（SEM）对合成的接枝共聚物进行了表征。通过“搅拌试验”程序研究了合成接枝共聚物在 0.25%高岭土和 1%煤粉悬浮液中的絮凝效果。此外，还研究了最佳等级、混凝剂（明矾）和琼脂的絮凝效果，以期将其应用于从河水中去除金属。
