| 光谱学与光谱分析 |
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| Studies on Photoluminescence Characteristics of Curcumin in Acrylamide Polymer |
| WANG Sui, CHANG Xi-jun*, GONG Guo-quan |
| College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou730000, China |
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Abstract A photoluminescence polymer was prepared using acrylamide as a monomer, a large excess of ethyleneglycol dimethacrylate as the cross-linking agent, and curcumin as a fluorescence additive. The polymer was ground into powder and screened in order to get even powder, whose diameter was from 40 to 75 μm. The emission spectra of curcumin in solid powder polymer show a strong blue shift compared with that of curcumin in C2H5OH solution. Meanwhile, rhodamine 6G, tetraiodofluorescein and phloxin have the same phenomenon of blue shift. Based on these facts, we speculate that the mechanism is probably single molecular luminescence because of the limit effect in three dimension space of the polymer. The molecule fluorescence peak was also depending on its environment because the surrounding electron field affected the molecule luminescence in polymer.
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Received: 2002-11-16
Accepted: 2003-03-06
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Corresponding Authors:
CHANG Xi-jun
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| Cite this article: |
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WANG Sui,CHANG Xi-jun,GONG Guo-quan. Studies on Photoluminescence Characteristics of Curcumin in Acrylamide Polymer [J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2004, 24(03): 274-277.
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http://www.gpxygpfx.com/EN/Y2004/V24/I03/274 |
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