脱氢枞胺分子印迹聚合物的吸附性能研究  

Study on Adsorption Properties of Dehydroabietylamine Molecularly Imprinted Polymer

作　　者：雷福厚 赵慷[1] 李小燕[1,2] 卢建芳[1,2] 关瑜婷[1] 

机构地区：[1]广西民族大学化学与生态工程学院,广西南宁530006 [2]广西林产化学品开发与应用重点实验室,广西南宁530006

出　　处：《精细化工》2010年第1期11-15,100,共6页Fine Chemicals

基　　金：国家自然科学基金资助项目(30960306);广西自然科学基金资助项目(桂科基0639026)~~

摘　　要：以脱氢枞胺为模板分子,丙烯酸为功能单体,马来松香乙二醇丙烯酸酯为交联剂,合成了脱氢枞胺分子印迹聚合物,对聚合物的结构和性能进行了表征,对分离提纯脱氢枞胺的性能进行了测定。结果表明,聚合反应的最佳条件为：0.285 g脱氢枞胺（1 mmol）、0.288 g丙烯酸（4 mmol）和4.91 g马来松香乙二醇丙烯酸酯（8 mmol）;反应溶剂为氯仿（30 mL）,汽油（15 mL）,水（300 mL）混合溶剂;引发剂为偶氮二异丁腈（0.27 g）;反应时间5 h,反应温度为70-80℃,搅拌速度为300 r/m in。最佳静态吸附条件为：以体积分数为80%的乙醇为溶剂配制脱氢枞胺溶液,质量浓度为2 g/L,分子印迹聚合物为20-40目,吸附温度70℃,振荡速度150 r/m in。脱氢枞胺分子印迹聚合物对脱氢枞胺的静态平衡吸附时间为12 h,吸附量为223 mg/g,平衡解吸时间为12 h,解吸率为95.9%。经分子印迹聚合物分离纯化后的脱氢枞胺质量分数由67.4%提高到98.3%。说明该分子印迹聚合物对脱氢枞胺的特异吸附性能良好,可以达到分离纯化脱氢枞胺的目的。In this paper,the dehydroabietylamine molecularly imprinted polymer（MIP） has been synthesized with dehydroabietylamine as a template,acrylic acid as a functional monomer and ethylene glycol maleic rosinate acrylate as a crosslinker.The structure and performance of the polymer have been investigated.Its application for the separation and purification of dehydroabietylamine has also been studied.The result showed that the optimum polymerization conditions were： the mixing molar ratio of dehydroabietylamine,acrylic acid and ethylene glycol maleic rosinate acrylate is 1∶4∶8;chloroform（30 mL）,gasoline（15 mL） and distilled water（300 mL） were mixed as solvents.The amount of initiator used is 5% of the total amount of reactants.The polymerization reaction was taken at 70～80 ℃ for 5 h with the stirring speed of 300 r/min.MIP′s static adsorbance for droabietylamine was determined as 223 mg/g.The desorption ratio was 95.9%.The optimum static adsorption conditions were：2 g/L dehydroabietylamine（mass concentration） in 80% alcohol solution（volume fraction） was adsorbed by 20～40 mesh MIP at 70 ℃ with stirring at 150 r/min.The purity of dehydroabietylamine was raised from 67.4% to 98.3%（mass fraction）.

关 键 词：脱氢枞胺 分子印迹聚合物 吸附性能 功能材料 

分 类 号：O63[理学—高分子化学]