交联壳聚糖缩水杨醛螯合树脂的制备及性能研究  

THE SYNTHESIS AND ADSORPTION PROPERTIES OF THE CHELATING RESIN OF CROSSLINKING CHITOSAN CONDENSE WITH SALILYLALDEHYDE

作　　者：刘峥[1] 田兴乐[2] 蒋先明 

机构地区：[1]桂林工学院材料系,桂林541004 [2]广西师范大学化工系,桂林541004

出　　处：《离子交换与吸附》1999年第5期432-439,共8页Ion Exchange and Adsorption

摘　　要：以壳聚糖缩水杨醛产品为原料，环氧氯丙烷为交联剂，加入相转移催化剂，合成交联壳聚糖缩水杨醛螯合树脂的新工艺。考察了各种因素对交联反应的影响及树脂的吸附性能。结果表明，该树脂具有对Ｃｕ（Ⅱ）吸附容量高，吸附选择性系数Ｋｃｕ（Ⅱ）／Ｆｅ（Ⅲ）＝１３．５５，经简单再生后重复使用次数多的特点。Using the chitosan condense with salilylaldehyde (S--CTS) as the raw materialepichlorohydrin as crosslink agent, adding the phase transfer catalyst, a new crosslinkedchelating resin was synthesized (CL--S--CTS). The factors of crosslinking reaction and theabsorption properties of CL--S--CTS were investigated. The results show that the resin has higherabsorption capacities. The coefficients of selectivity KCu(Ⅱ)/Fe(Ⅲ) is 13.55. It can be reutillizatedafter simply reproduction.

关 键 词：壳聚糖缩水杨醛 交联 螯合树脂 

分 类 号：O636.1[理学—高分子化学] TQ425.234[理学—化学]