Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/13988
Title: Reversible thermochromic switching of fluorescent poly(vinylidene fluoride) composite containing bis(benzoxazolyl)stilbene dye
Authors: Bao, S
Fei, B 
Li, J
Yao, X
Lu, X
Xin, JH 
Keywords: Bis(benzoxazolyl)stilbene
Composite
Fluorescence
Poly(vinylidene fluoride)
Reversible
Thermochromism
Issue Date: 2013
Source: Dyes and pigments, 2013, v. 99, no. 1, p. 99-104 How to cite?
Journal: Dyes and Pigments 
Abstract: A series of fluorescent composites was prepared via melt compounding poly(vinylidene fluoride) with 4,4′-bis(2-benzoxazolyl)stilbene. The composite containing moderate amount of the stilbene (e.g. 0.5 wt%) exhibited a reversible thermochromic transition between blue and green fluorescence. The composite emitted green light upon UV excitation at room temperature, while it changed to blue at the temperature above the melting point of the poly(vinylidene fluoride). Upon cooling to room temperature, an intense green emission was regenerated. Such a conversion between green and blue shades was reproducible via repeated heating and cooling cycles. This thermochromic switching was found to originate from the dispersion of dye molecules in the composite.
URI: http://hdl.handle.net/10397/13988
ISSN: 0143-7208
DOI: 10.1016/j.dyepig.2013.04.005
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