林产化学与工业2009，Vol.29Issue(5)：99-103,5.
聚乙烯亚胺 - 纤维素的合成及对胆红素吸附性能
Synthesis of Polyethyleneimine-microcrytalline Cellulose and Its Adsorption Character for Bilirubin
摘要
Abstract
A new type of functional polymer adsorption material,namely polyethyleneimine-microcrystalline cellulose ( PEI-MCC) was synthesized with polyethyleneimine as functional group and modified cellulose as carrier.PEI was grafted on cellulose using epoxy chloropropane( EC).PEI-MCC was characterized by XRD,FT-IR,elemental analysis and its adsorption capacity of biliru-bin.Experimental results showed that the optimal synthesis condition was as follows:ratio of MCC to PEI 1:6 by weight,reaction temperature 70 ℃,reaction time 12 h and pH value 11,sodium hydroxide solution 40 mL,under nitrogen atmosphere.The product was filtered and washed to pH value 7 by water,then vacuum-dried at 40 ℃ over 24 h to get a white-to-brown power.Nitrogen content of PEI-MCC was 5.27 % and XRD result showed that degree of crystallinity of PEI-MCC was 78.36 %.The max adsorption capacity for bilirubin was 9.23 mg/g and adsorption equilibrium was reached after 4 hours.关键词
微晶纤维素/聚乙烯亚胺/胆红素/医用吸附材料Key words
microcrystalline cellulose/polyethyleneimine/bilirubin/medical adsorption material分类
化学化工引用本文复制引用
李宏振,方桂珍,李俊业,马英梅,马艳丽,金钟玲..聚乙烯亚胺 - 纤维素的合成及对胆红素吸附性能[J].林产化学与工业,2009,29(5):99-103,5.基金项目
高等学校博士学科点专项科研基金资助项目(20060225008) （20060225008）
