Photo- and thermoinduced ring opening reaction of 2[(1,3,3-trimethylindoline-2(1H)-yliden)propen-1-yl]-3,3-dimethylindolino[1,2-b]-oxazolidine in polymer films

• Authors: I. Petkov , F. Charra , J Nunzi , T. Deligeorgiev
• Languages of publication: EN

Abstracts

EN

The influence of UV light and temperature on poly(methylmethacrylate) (PMMA) and poly(vinylchloride) (PVC) films, doped with 2[(1,3,3-trimethylindoline-2(1H)-yliden)propen-1-yl]-3,3-dimethylindolino[1,2-b]-oxazolidine has been investigated. The radiation-induced colour was analyzed spectrophotometrically at the maximum of the absorption peak at 560 nm. The effect of the temperature on unirradiated and irradiated films was studied. The results demonstrate a strong photochromic and a weak thermochromic behaviour of the PMMA and PVC films. The relationship of photocolouration-thermal decolouration is discussed based on the spectral results reported here.

Keywords

EN

photochromism; thermochromism; UV light irradiation; polymer films

• Publisher: De Gruyter Open
• Journal: Open Chemistry
• Year: 2004
• Volume: 2
• Issue: 2
• Pages: 290-301

Dates

published

1 - 6 - 2004

online

1 - 6 - 2004

Contributors

author

I. Petkov

• Department of Organic Chemistry, University of Sofia, 1 James Bourchier Avenue, 1126, Sofia, Bulgaria

author

F. Charra

• Centre d’Etude de Saclay, DEIN-SPE, F-91191, Gif sur Yvette, Paris, France

author

J Nunzi

• Laboratoire POMA, University of Angers, 2, Bd. Lavoisier, 49045, Angers Cedex 01, France

author

T. Deligeorgiev

• Department of Organic Chemistry, University of Sofia, 1 James Bourchier Avenue, 1126, Sofia, Bulgaria

References

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• [7] I. Petkov, F. Charra, J.-M. Nunzi and T. Deligeorgiev: “Photochemistry of 2-[(1,3,3-trimethylindoline-2(1H)-ylidene)propen-1-yl]-3,3-dimethylindolino[1,2-b]oxazolidine in solution”,J. Photochem. and Photobiol., Chemistry: A, Vol. 128, (1999), pp. 93–96. http://dx.doi.org/10.1016/S1010-6030(99)00131-8[Crossref]

Identifiers

DOI

10.2478/BF02475574