作者:Fengyan Song、Xiao Ma、Jiali Hou、Xiaobo Huang、Yixiang Cheng、Chengjian Zhu
DOI:10.1016/j.polymer.2011.11.017
日期:2011.12
(R,R)-salen-based polymer fluorescence sensor P-1 could be synthesized by the polymerization of 5,5′-(isoquinoline-5,8-diylbis(ethyne-2,1-diyl))-bis(3-tert-butyl-2-hydroxybenzaldehyde) (M-1) with (R,R)-1,2-diaminocyclohexane (M-2) via nucleophilic addition–elimination reaction, and (R,R)-salan-based polymer sensor P-2 could be obtained by the reduction reaction of P-1 with NaBH4. The fluorescence response
(R,R)-salen-based聚合物荧光传感器P-1可以通过5,5'-(异喹啉-5,8-二基双(乙炔-2,1-二基))-双(3-)的聚合来合成叔丁基-2-羟基苯甲醛(M-1)与(R,R)-1,2-二氨基环己烷(M-2)通过亲核加成-消除反应和(R,R)-salan-based聚合物传感器P P-1与NaBH 4的还原反应可得到-2。两种手性聚合物P-1和P-2在Zn 2+上的荧光响应行为通过荧光光谱进行了研究。添加Zn 2+后,P-1和P-2的荧光强度逐渐增强。与其他阳离子相比,例如Na +,K +,Mg 2 +,Ca 2 +,Fe 3+,Co 2 +,Ni 2 +,Cu 2 +,Ag +,Cd 2 +,Cr 3+和Pb 2 +,锌2+可导致显着的荧光增强高达22.8倍为P-1和3.75倍为P-2, 分别。结果表明,在聚合物主链主链中掺入(R,R)-salen / salan部分作为受体的P-1和P-2可以表现出对Zn