THE SYNTHESIS OF THERMOSENSITIVE POLYMER COMPOSITE MAGNETIC NANO PARTICLES AND ITS APPLICATION TO RECOVERY OF USEFUL MOTERIAL FROM WASTE WATER

用平均粒径为400 nm的温敏凝胶微粒与粒径为50 nm的磁性微粒和温敏聚N-异丙基丙烯酰胺（pNIPA）凝胶复合，研究了其对疏水性有用物质的吸附性能。还研究了颗粒的分离效率的改善，发现增加凝胶颗粒中pNIPA的比率是有效的。结果表明，在转变温度（32℃）范围内，通过变温可以将疏水有用物质从溶液中分离出来

We have investigated the adsorption property of hydrophobic useful substance by using the thermosenstive gel particulate of the average diameter 400nm, that was compounding with the magnetic particulate of diameter, 50nm and the thermosensitive poly -Nisopropylacrylamide (pNIPA) gel. The improvement of separation efficiency of the particle was also investigated to find that an increase of the ratio of pNIPA in the gel particle was effective. It became clear that the hydrophobic useful substance could be separated from solution by the temperature swing across the transition temperature (32℃)