【摘要】 以壳聚糖(CTS)为功能基体,以L-脯氨酸(L-Pro)为模板分子,采用分子印迹技术,在水溶液中合成了在空间结构和结合位点上与L-脯氨酸匹配的分子印迹聚合物(L-Pro-M IPs)。利用红外、扫描电镜和热失重分析,对相关化合物进行了表征,并对合成机理进行初步探索;通过对pH值、反应时间、交联剂用量的调节,获得最佳的反应条件为:制备壳聚糖-L-脯氨酸复合物的pH=10.7,干复合物1.0 g,交联剂8 mL,室温下反应18 h。结果表明,在水相中,L-Pro-M IPs对L-Pro具有良好的吸附选择性和高效分离特性,分离因子为4.67。更多还原

【Abstract】 With chitosan as the functional matrix(FMx) and L-Proline(L-Pro) as the template molecule,(molecularly) imprinting polymer with both the spatial configuration and bonding sites matching to L-Proline was synthesised by means of the molecularly imprinting technology in water.The polymer product was characterized by IR,SEM and TG.Furthermore,the mechanism was explored preliminarily.The effects of pH,the amount of cross-linking agent and reaction time were studied.The optimum conditions were: pH=10.7,composite 1.0 g,cross-linking agent 8 mL,18 h at ambient temperature.The experimental results show that L-Pro-MIP has a superior selective adsorption capacity and efficient chiral separation of L-Proline in water phase,the(resolution) factor is 4.67.更多还原