纳滤膜纯化球状大分子的可行性研究  

Study on purification of spheric macromolecules via nanofiltration process

作　　者：李连超[1] 谭惠民[1] 马成良 

机构地区：[1]北京理工大学化工与材料学院,北京100081 [2]北京先路水处理新技术公司,北京100082

出　　处：《膜科学与技术》2004年第1期66-69,共4页Membrane Science and Technology

摘　　要：分析了球状大分子合成中的目标产物难分离难纯化的特点,采用纳滤膜分离技术纯化新型纳米材料———球状大分子;通过HPLC和元素分析测试了纯化前后的纯度,证明了纳滤膜是可以提高目标球状大分子的纯度;孔径较大的NF1膜有利于乙二胺的透过,其纯度提高较大,而孔径较小的NF2膜对乙二胺的透过能力下降,所以纯度提高较小.The reasons why PAMAM dendrimers were difficult to be separated or purified were discussed, and the PAMAM dendrimers were purified via nanofiltration process.Purity of PAMAM dendrimers were measured by HPLC and elemental analyzer.The results showed that the purity of PAMAM dendrimers can be improved by nanofiltration process,and is affected by the pore sizes of NF membranes.

关 键 词：纳滤膜 膜分离 球状大分子 纯化 孔径 

分 类 号：TB43[一般工业技术]