Department of Applied Chemistry, Birla Institute of Technology, Mesra, Ranchi 835215, Jharkhand, India.
Carbohydr Polym. 2012 Oct 1;90(2):784-91. doi: 10.1016/j.carbpol.2012.05.069. Epub 2012 Jun 6.
Polyacrylamide grafted Agar (Ag-g-PAM) has been successfully synthesized by conventional method and microwave assisted method. The former method employs ceric ammonium nitrate (CAN) as the free radical initiator while the latter uses the combination of ceric ammonium nitrate (CAN) and microwave irradiation. The synthesized graft copolymers have been characterized by elemental analysis (C, H, N, O and S), FTIR spectroscopy, intrinsic viscosity measurement and scanning electron micrograph (SEM); taking agar as a reference. Flocculation efficacy of synthesized graft copolymers was studied in kaolin suspension and in waste water through 'Jar test' procedure. In the present investigation, we have observed that polyacrylamide grafted agar synthesized by microwave assisted technique shows superior properties than conventional technique. These properties are reported in terms of intrinsic viscosity, flocculation efficacy and pollutant load reduction of waste water.
聚丙烯酰胺接枝琼脂（Ag-g-PAM）已通过常规方法和微波辅助方法成功合成。前者方法使用硝酸铈铵（CAN）作为自由基引发剂，而后者则使用硝酸铈铵（CAN）和微波辐射的组合。通过元素分析（C、H、N、O 和 S）、傅里叶变换红外光谱、特性粘度测量和扫描电子显微镜（SEM）对合成的接枝共聚物进行了表征；以琼脂为参考。通过“Jar 测试”程序，在高岭土悬浮液和废水中研究了合成接枝共聚物的絮凝效果。在本研究中，我们观察到，通过微波辅助技术合成的聚丙烯酰胺接枝琼脂比常规技术具有更优越的性能。这些性能是根据特性粘度、絮凝效果和废水污染物负荷的降低来报告的。
