UNUSUAL ABSORPTION AND FLUORESCENCE PROPERTIES OF 1,6-DIPHENYL-1,3,5-HEXATRIENE IN POLY(VINYL ALCOHOL) FILM

被引：56

作者：

KAWSKI, A ^{[1
]}

KUBICKI, A ^{[1
]}

KUKLINSKI, B ^{[1
]}

GRYCZYNSKI, I ^{[1
]}

机构：

[1] UNIV MARYLAND,DEPT BIOL CHEM,CTR FLUORESCENCE SPECTROSCOPY,BALTIMORE,MD 21201

来源：

JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY | 1993年 / 71卷 / 02期

关键词：

D O I：

10.1016/1010-6030(93)85068-J

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

The effect of temperature on the absorption and fluorescence properties of 1,6-diphenyl-1,3,5-hexatriene (DPH) in poly(vinyl alcohol) (PVA) film was investigated in the range 295-428 K. On heating above 353 K, the optical density (in the long-wavelength region) and the quantum yield of DPH increase rapidly. This effect is irreversible, i.e. once the sample is heated it retains its absorbance and fluorescence quantum yield on cooling to room temperature. It has its origin in the cis-trans conversion of DPH molecules in the PVA melt at high temperatures.

引用

页码：161 / 167

页数：7

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