Department of Applied Chemistry, Birla Institute of Technology, Mesra, Ranchi 835215, Jharkhand, India.
Int J Biol Macromol. 2013 Sep;60:141-7. doi: 10.1016/j.ijbiomac.2013.05.012. Epub 2013 May 24.
Modification of the milk protein 'casein' has been carried out through microwave initiated graft copolymerization of acrylamide. The synthesis was optimized in terms of microwave irradiation time and monomer (acrylamide) concentration. The synthesized graft copolymers have been characterized by intrinsic viscosity measurement, elemental analysis, FTIR spectroscopy, scanning electron microscopy (SEM) and number average molecular weight determination through osmometry; taking the starting material (casein) as reference. Further, flocculation efficacy of various grades of the grafted product were studied and compared to that of the starting material 'casein' by Jar test and settling test procedure, in 1% coal-fine suspension.
通过微波引发丙烯酰胺接枝共聚反应对牛奶蛋白“酪蛋白”进行了修饰。从微波辐射时间和单体(丙烯酰胺)浓度两方面对合成进行了优化。通过特性粘度测量、元素分析、傅里叶变换红外光谱(FTIR)、扫描电子显微镜(SEM)和渗透压法(以起始材料(酪蛋白)为参比)对合成的接枝共聚物进行了表征;进一步,通过Jar 试验和沉降试验程序,在 1%煤粉悬浮液中,研究了不同等级接枝产物的絮凝效果,并与起始材料“酪蛋白”进行了比较。