Chromic effects in poly(3-(10-hexanoyloxydecyl)-2,5-thienylene) as precursor of ω-hydroxydecyl-functionalized polythiophen
✍ Scribed by Massimiliano Lanzi; Franco Bertinelli; Paolo Costa-Bizzarri; Carlo Della-Casa
- Publisher
- John Wiley and Sons
- Year
- 1998
- Tongue
- English
- Weight
- 303 KB
- Volume
- 9
- Category
- Article
- ISSN
- 1042-7147
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✦ Synopsis
The preparation of a hexanoyloxydecyl 3-substituted polythiophene and its conversion to the corresponding hydroxydecyl polymer, soluble in common organic solvents, is described. Solvatochromic and thermochromic effects of the two polymers were investigated by UV± vis spectroscopy in pure solvent and in solvent/ nonsolvent solutions. A very different response was found depending on the type of functional group. The carboxylate polymer requires the synergy of both nonsolvent and low temperature for a strong chromic effect comparable to that of the hydroxy polymer to be observed. A possible explanation of this behavior is discussed.