Fluorescent Quantum Yield of Pyrene Probe in Ultrathin Polymer Films

The fluorescently labelled polymers including pyrene-labelled polystyrene （PyPS） and pyrene-labelledpoly（methyl methacrylate） （PyPMMA） with narrow molecular weight distributions were synthesized by the atom transferradical copolymerization （ATRCP） of styrene or methyl methacrylate with 1-pyrenemethy...

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Bibliographic Details
Published in:Chinese journal of polymer science 2017-03, Vol.35 (3), p.400-406
Main Authors: Wei, Wan-chu, Feng, Shuo, Zheng, Cai-xia, Liang, Guo-dong, Zhu, Fang-ming
Format: Article
Language:English
Subjects:
Characterization and Evaluation of Materials
Chemical synthesis
Chemistry
Chemistry and Materials Science
Condensed Matter Physics
Copolymerization
Detectors
Film thickness
Fluorescence
Fluorescentquantum
Industrial Chemistry/Chemical Engineering
Integrating spheres
methacrylate
Molecular weight distribution
Photoluminescence
polymer
Polymer films
Polymer Sciences
Polymeric films
Polymers
Polymethyl methacrylate
Polymethyl methacrylates
polystyrene
Polystyrene resins
poly（methyl
Pyrene-labelled
Pyrenes
Spin coating
Styrenes
Synthesis (chemistry)
Thickness
Ultrathin
yield
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Summary:The fluorescently labelled polymers including pyrene-labelled polystyrene （PyPS） and pyrene-labelledpoly（methyl methacrylate） （PyPMMA） with narrow molecular weight distributions were synthesized by the atom transferradical copolymerization （ATRCP） of styrene or methyl methacrylate with 1-pyrenemethyl methacrylate （PyMMA）. Theultrathin PyPS and PyPMMA films with the thickness ranging from 30 nm to 400 nm supported on the quartz slides wereprepared by spin-coating. The fluorescent quantum yield （QY） of the pyrene probe in the ultrathin polymer films wasinvestigated by the photoluminescence spectrometer using an integrating sphere detector. The QY decreased with thereduction of film thickness in the sub-200 nm range.
ISSN:0256-7679
1439-6203
DOI:10.1007/s10118-017-1884-y