摘要
本文基于分子间质子转移和诱导分子内电荷转移(ICT)机理,合成了以萘酰亚胺为发光基团、苯甲酰为F-检测基团的荧光单体,并采用可逆加成-断裂链转移(RAFT)聚合方法将其与N-异丙基甲基丙烯酰胺(NIPAM)进行共聚,制备了一种可以用于F-检测的共聚物荧光探针poly(NIPAMm-co-Napn)(简称PNap334),并分别在二氯甲烷-二甲基亚砜(9/1,V/V)溶液和固体薄膜中考察了聚合物PNap334对F-的响应。研究发现,聚合物溶液和聚合物膜对F-均有很好的识别作用,聚合物溶液对F-的检测限为1.05μmol/L。
Polymeric fluorescent chemosensor,poly(NIPAMm-co-Napn) (abbreviation as PNap334),has been synthesized by reversible addition-fragmentation chain transfer (RAFT) polymerization.The copolymer consists of 1,8-naphthalimide as luminophore and benzamide as fluoride ions (F-) selective detection unit.The Fresponsive properties of the resulted copolymer PNap334 were investigated in DCM/DMSO (9/1,V/V)solution and film,respectively.Based on an intermolecular proton transfer (IPT) and induced intramolecular charge transfer (ICT) mechanism,the polymeric chemosensor displays distinct selective detection of F-both in solution and film.And the detection limit of F-in solution is 1.05 μmol/L.
出处
《影像科学与光化学》
CAS
CSCD
北大核心
2014年第2期133-140,共8页
Imaging Science and Photochemistry
基金
国家自然科学青年基金项目(61306022)
教育部留学回国人员科研启动基金项目(J200-C-1103)资助