摘要:利用表面分子印迹技术和溶胶-凝胶法制备铅离子印迹聚合物，以硝酸铅为模板分子，壳聚糖为功能单体，硅胶为载体，γ-(2,3环氧丙氧)丙基三甲氧基硅烷(KH-560)为交联剂，通过单因素和正交实验对制备工艺中模板分子与交联剂的比例，壳聚糖的用量，交联反应时间，凝胶干燥温度等因素进行探讨。确定铅离子印迹聚合物的最佳工艺：模板分子与交联剂的摩尔比为1:18，壳聚糖的用量为1.8 g，交联反应时间为5 h，凝胶聚合物干燥的温度为50 ℃，硅胶在聚合物中用量为1.5 g，采用3 mol/L的盐酸在超声条件下进行洗脱。在此条件下，制备出的最优化聚合物，其最大饱和吸附量达到22.7 mg/g。
关键词 印迹聚合物；分子印迹技术；溶胶-凝胶法；凝胶干燥温度；超声
Abstract:Using surface molecular imprinted technology and Sol-coagulation rubber method preparation lead ion imprinted polymer, to nitrate lead for template molecular, shell poly sugar for features monomer, silicone for carrier, γ-(2,3-glycidoxypropyl) as base three methyl oxygen base Silicon (KH-560) for cross Alliance agent, through single factors and orthogonal experiment on preparation technology in the template molecular and cross Alliance agent of proportion, shell poly sugar of dosage, cross Alliance reaction time, coagulation rubber dry temperature, factors for discussion.Determine the optimal process of lead ion imprinted polymer: moerbi of the template molecules and cross-linking agent for 1:18, 1.8 g of Chitosan, Crosslinking reaction time of 5 h, gel polymer drying temperature of 50 ℃, silicone polymers with the capacity of 1.5 g, 3 mol/l hydrochloric acid under ultrasonic conditions for Elution.Under these conditions, optimal preparation of polymers, it reached a maximum amount of saturated absorption 22.7 mg/g.
Keywords Imprinted Polymers Surface molecular imprinting technique Sol - gel method Gel drying temperature Ultrasound
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