ICCAS OpenIR
Phosphonate-Functionalized Polyfluorene as a Highly Water-Soluble Iron(III) Chemosensor
Qin, Chuanjiang1,2; Cheng, Yanxiang1; Wang, Lixiang1; Jing, Xiabin1; Wang, Fosong1
2008-11-11
Source PublicationMACROMOLECULES
ISSN0024-9297
Volume41Issue:21Pages:7798-7804
AbstractAn anionic, phosphonate-functionalized polyfluorene, i.e., poly(9,9-bis(3'-phosphatepropyl)fluorene-alt-1,4-phenylene) sodium salt (PFPNa), has been synthesized by copolymerization of phosphonic acid-substituted 2,7-dibromofluorene and phenyldiboronic ester via direct Suzuki polycondensation reaction in DMF/water. Polymer PFPNa is highly soluble and emissive in water with a solubility of 60 mg/mL and a photoluminescence quantum yield of 75%. The absorption and fluorescence spectra of PFPNa are strongly dependent on pH value owing to the partial protonation of phosphate groups and the aggregation of the polymer chains. In aqueous media polymer PFPNa shows high sensitivity and selectivity for Fe3+. A 400-fold fluorescence quenching was achieved upon adding Fe3+ into its aqueous solution. Most importantly, ultrathin multilayer films constructed by alternatively depositing polyanionic PFPNa and polycationic poly(diallyldimethylamine) via the layer-by-layer (LbL) self-assembling method are stable and highly sensitive to Fe3+ with a sensitivity up to 10(-7) M.
DOI10.1021/ma801282m
Indexed BySCI
Language英语
WOS IDWOS:000260612700008
PublisherAMER CHEMICAL SOC
Citation statistics
Cited Times:72[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.iccas.ac.cn/handle/121111/65414
Collection中国科学院化学研究所
Corresponding AuthorWang, Lixiang
Affiliation1.Chinese Acad Sci, Changchun Inst Appl Chem, State Key Lab Polymer Phys & Chem, Changchun 130022, Peoples R China
2.Chinese Acad Sci, Grad Sch, Beijing 100039, Peoples R China
Recommended Citation
GB/T 7714
Qin, Chuanjiang,Cheng, Yanxiang,Wang, Lixiang,et al. Phosphonate-Functionalized Polyfluorene as a Highly Water-Soluble Iron(III) Chemosensor[J]. MACROMOLECULES,2008,41(21):7798-7804.
APA Qin, Chuanjiang,Cheng, Yanxiang,Wang, Lixiang,Jing, Xiabin,&Wang, Fosong.(2008).Phosphonate-Functionalized Polyfluorene as a Highly Water-Soluble Iron(III) Chemosensor.MACROMOLECULES,41(21),7798-7804.
MLA Qin, Chuanjiang,et al."Phosphonate-Functionalized Polyfluorene as a Highly Water-Soluble Iron(III) Chemosensor".MACROMOLECULES 41.21(2008):7798-7804.
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