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J. Griffiths, K.Y. Chu, D. Ward
Light‐absorption and light‐emission properties of cyanovinyl‐substituted dimethoxybenzenes
- Publisher
- Emerald Publishing
- Copyright
- Copyright © 2004 Emerald Group Publishing Limited. All rights reserved.
- ISSN
- 0369-9420
- DOI
- 10.1108/03699420410568391
- Publisher site
- See Article on Publisher Site
Abstract
A range of methine dyes has been synthesised by condensation of electronegative active methylene compound, 4‐nitrophenylacetonitrile with substituted benzaldehydes. The electronic absorption spectroscopic properties of the dyes were investigated. It was found that in general, substituents on the aromatic aldehyde moiety had a significant effect on the visible absorption maxima of the dyes.
Journal
Pigment & Resin Technology – Emerald Publishing
Published: Dec 1, 2004
Keywords: Polymers; Dyes; Ultraviolet radiation