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A reversible pH-modified fluorescence transition in block copolymer micelles enwrapped with a zinc(II) fluorescent complex
Qin, Yumei1; Li, Shuangde2; Lu, Jun1; Li, Zhen1; Duan, Xue1
2016
Source PublicationRSC ADVANCES
ISSN2046-2069
Volume6Issue:51Pages:45708-45715
AbstractA reversible pH-modified blue to green luminescent transition systemwas constructed by encapsulating bis(2-(2-hydroxyphenyl)benzothiazolate) zinc (Zn(BTZ)(2)) within poly(styrene-b-acrylic acid) (PS-b-PAA) micelles. The system can respond to changes in the external pH environment from alkaline (7.0-10.5) to weakly acidic (4.5-7.0) conditions, which are absent for the pristine Zn(BTZ)(2) dimethylformamide solution state, and designated as blue and green micelles, respectively. The tunable pH-modified luminescent behavior probably originates from changes in the Zn(BTZ)(2) molecular packing modes modified by the shrink/swell morphology transition of the copolymer micelles due to the reversible ionization of the carboxylic group. The emission transition from blue to green can be further detected through affecting the Zn(BTZ)(2) intermolecular interactions upon grinding the Zn(BTZ)(2) powder. The micelles were further fabricated to form films by electrostatic layer-by-layer assembly with positively charged layered double hydroxide (LDH) nanosheets, which are responsive to acidic and alkaline atmospheres and show higher UV resistance compared to the micelles/PDDA (poly(dimethyldiallylammonium) chloride) film.
SubtypeArticle
WOS HeadingsScience & Technology ; Physical Sciences
DOI10.1039/c6ra07049c
Indexed BySCI
Language英语
WOS KeywordLAYERED DOUBLE HYDROXIDE ; ELECTROLUMINESCENT PROPERTIES ; ULTRATHIN FILMS ; POLYMERIC MICELLES ; OPTICAL-PROPERTIES ; BUILDING-BLOCKS ; LUMINESCENCE ; NANOPARTICLES ; TEMPERATURE ; EMISSION
WOS Research AreaChemistry
WOS SubjectChemistry, Multidisciplinary
Funding OrganizationNational Natural Science Foundation of China ; 111 Project(B07004) ; New Century Excellent Talents in University(NCET-11-0560) ; Fundamental Research Funds for the Central Universities
WOS IDWOS:000376120100091
Citation statistics
Cited Times:2[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.ipe.ac.cn/handle/122111/21081
Collection多相复杂系统国家重点实验室
Affiliation1.Beijing Univ Chem Technol, State Key Lab Chem Resource Engn, P Box 98,Beisanhuan East Rd 15, Beijing 100029, Peoples R China
2.Chinese Acad Sci, Inst Proc Engn, State Key Lab Multiphase Complex Syst, Beijing 100190, Peoples R China
Recommended Citation
GB/T 7714
Qin, Yumei,Li, Shuangde,Lu, Jun,et al. A reversible pH-modified fluorescence transition in block copolymer micelles enwrapped with a zinc(II) fluorescent complex[J]. RSC ADVANCES,2016,6(51):45708-45715.
APA Qin, Yumei,Li, Shuangde,Lu, Jun,Li, Zhen,&Duan, Xue.(2016).A reversible pH-modified fluorescence transition in block copolymer micelles enwrapped with a zinc(II) fluorescent complex.RSC ADVANCES,6(51),45708-45715.
MLA Qin, Yumei,et al."A reversible pH-modified fluorescence transition in block copolymer micelles enwrapped with a zinc(II) fluorescent complex".RSC ADVANCES 6.51(2016):45708-45715.
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