Fluorescence sensors based on chiral polymer for highly enantioselective recognition of phenylglycinol
作者:Ying Xu、Lifei Zheng、Xiaobo Huang、Yixiang Cheng、Chengjian Zhu
DOI:10.1016/j.polymer.2010.01.038
日期:2010.3
Chiral polymer P-1 incorporating (R,R)-salen-type unit was synthesized by the polymerization of (R,R)-1,2-diaminocyclohexane with 2,5-dibutoxy-1,4-di(5-tert-butylsalicyclaldehyde)-phenylene (M-1) via nucleophilic addition–elimination reaction, and chiral polymer P-2 incorporating (R,R)-salan-type unit could be obtained by the reduction reaction of P-1 with NaBH4. The fluorescence response of two chiral
手性高分子P-1结合(- [R ,- [R)-salen型单元是由(的聚合合成- [R ,- [R)-1,2-二氨基环己烷与2,5-二丁氧基-1,4-二(5-叔-通过P-1与NaBH 4的还原反应,可以通过亲核加成-消除反应通过丁基水杨醛醛)-亚苯基(M-1)和掺入(R,R)-salan型单元的手性聚合物P-2。两种手性聚合物P-1和P-2对(R)或(S)-苯基甘氨醇通过荧光光谱研究。两个手性聚合物的荧光强度P-1和P-2示出在加入的(逐步提高- [R )-或(小号)-phenylglycinol并保持几乎线性相关与(浓度的摩尔比[R )-或(小号) -苯甘醇 但是P-1和P-2都对(S)-苯基甘氨醇表现出更敏感的响应信号。P-1和P-2的对映体荧光差异比(ef)的值分别为1.84和2.05, 分别。结果还表明,两种手性聚合物P-1和P-2也可用作荧光传感器,用于测定苯基甘醇的对映体组成。