Fluorescence Behavior of a β-Diketone-bridged Chromophore-containing Acrylic Monomer and Its Model Compound

Chem. J. Chinese Universities ›› 2003, Vol. 24 ›› Issue (2): 374.

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Fluorescence Behavior of a β-Diketone-bridged Chromophore-containing Acrylic Monomer and Its Model Compound

DU Fu-Sheng¹, ZHANG Xin¹, CHEN Guang-Qiang¹, LI Zi-Chen¹, LI Fu-Mian¹, PAN Hui², GAO Qing-Yu²

1. Department of Polymer Science and Engineering, College of Chemistry and Molecular Engneering, Peking University, Beijing 100871, China;
2. College of Chemistry and Chemical Engineering, Henan University, Kaifeng 475001, China

Received:2001-09-19 Online:2003-02-24 Published:2003-02-24

Abstract

Abstract: A β-diketone-bridged chromophore-containing acrylic monomer, 1-(4-dimethylaminophenyl)-4-methyl-4-pentene-1,3-diketone(DMPDK) and its saturated model compound, 1-(4-dimethyl aminophenyl)-1,3-butanedione(DMBDK) were synthesized and investigated by spectroscopy. It was found that the fluorescence intensity of DMPDK was much lower than that of DMBDK at the same concentration, which indicates that DMPDK, a β-diketone-bridged acrylic monomer having chromophore moiety, also showed fluorescence structural self-quenching effect(SSQE). Photo-induced tautomerization of DMBDK in acetonitrile was studied by means of UV and fluorescence spectroscopy. The results imply that the fluorescence method is capable of monitoring tautomerization of some fluorescent β-diketones.

Key words: Diketone, Tautomerization, Fluorescence, UV absorption, SSQE

CLC Number:

O631.1

TrendMD:

DU Fu-Sheng, ZHANG Xin, CHEN Guang-Qiang, LI Zi-Chen, LI Fu-Mian, PAN Hui, GAO Qing-Yu . Fluorescence Behavior of a β-Diketone-bridged Chromophore-containing Acrylic Monomer and Its Model Compound[J]. Chem. J. Chinese Universities, 2003, 24(2): 374.

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Fluorescence Behavior of a β-Diketone-bridged Chromophore-containing Acrylic Monomer and Its Model Compound

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