Department of Applied Chemistry, Birla Institute of Technology, Mesra, Ranchi 835 215, Jharkhand, India.
Bioresour Technol. 2010 Dec;101(24):9638-44. doi: 10.1016/j.biortech.2010.07.058. Epub 2010 Jul 18.
Novel biodegradable polymeric flocculants were produced by conventional redox grafting, microwave-initiated and microwave-assisted grafting of acrylamide to tamarind kernel polysaccharide (TKP). The graft copolymers were characterized by viscometry, elemental analysis, molecular weight determination using SLS analysis, and NMR spectroscopy. The flocculation efficiency of the grafting products in kaolin suspension, municipal sewage wastewater and textile industry wastewater was primarily dependent on the length of the grafted polyacrylamide chain. The flocculant obtained by microwave-assisted grafting method was superior to TKP and polyacrylamide-based commercial flocculant (Rishfloc 226 LV) in flocculation tests.
新型可生物降解聚合物絮凝剂是通过传统的氧化还原接枝、微波引发和微波辅助接枝丙烯酰胺到罗望子果聚糖（TKP）制备的。接枝共聚物通过粘度法、元素分析、使用 SLS 分析的分子量测定和 NMR 光谱进行表征。接枝产物在高岭土悬浮液、城市污水和纺织工业废水中的絮凝效率主要取决于接枝聚丙烯酰胺链的长度。在絮凝试验中，通过微波辅助接枝法得到的絮凝剂优于 TKP 和基于聚丙烯酰胺的商业絮凝剂（Rishfloc 226 LV）。
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