Bhran, A., Fonteix, C., Hoppe, S., Jonquiè, A. (2010). PHOTOCHROMIC BEHAVIOR OF SPIROPYRAN IN POLYURETHANE THIN FILMS. test, 5(5th International Conference on Chemical & Environmental Engineering), 1-21. doi: 10.21608/iccee.2010.37362
Ahmed A. Bhran; Christian Fonteix; Sandrine Hoppe; Anne Jonquiè. "PHOTOCHROMIC BEHAVIOR OF SPIROPYRAN IN POLYURETHANE THIN FILMS". test, 5, 5th International Conference on Chemical & Environmental Engineering, 2010, 1-21. doi: 10.21608/iccee.2010.37362
Bhran, A., Fonteix, C., Hoppe, S., Jonquiè, A. (2010). 'PHOTOCHROMIC BEHAVIOR OF SPIROPYRAN IN POLYURETHANE THIN FILMS', test, 5(5th International Conference on Chemical & Environmental Engineering), pp. 1-21. doi: 10.21608/iccee.2010.37362
Bhran, A., Fonteix, C., Hoppe, S., Jonquiè, A. PHOTOCHROMIC BEHAVIOR OF SPIROPYRAN IN POLYURETHANE THIN FILMS. test, 2010; 5(5th International Conference on Chemical & Environmental Engineering): 1-21. doi: 10.21608/iccee.2010.37362

PHOTOCHROMIC BEHAVIOR OF SPIROPYRAN IN POLYURETHANE THIN FILMS

The International Conference on Chemical and Environmental Engineering
Article 6, Volume 5, 5th International Conference on Chemical & Environmental Engineering, May 2010, Pages 1-21    PDF (511.44 K)
Document Type: Original Article
DOI: 10.21608/iccee.2010.37362
Authors
Ahmed A. Bhran1; Christian Fonteix1; Sandrine Hoppe1; Anne Jonquiè2
1Laboratoire des Sciences du Genie chimique, Nany Universite, France.
2Lanboratoire de Chimie-physique Macromoleculaire,Nany Universite, France.
Abstract
ABSTRACT
The aim of this work is to characterize the photochromic properties of a commercial grade of polyurethane (PU) that contains small quantities of spiropyran (SP) [1-hexyle-3,3-dimethyl-6'-nitrospiro (indoline-2',2'-benzopyran)]. PU photochromic films were illuminated with ultraviolet irradiation (365 nm) at room temperature and the absorbance spectra are recorded after scanning from 400 to 800 nm (visible zone). The effects of film thickness, irradiation time, and SP concentration on the polymer photochromic response have been studied. Furthermore, the photochromic behavior of polymer films under stretching and the kinetics of thermal decoloration of these films will be discussed.
Keywords
Photochromic Behavir; Spiropyran; Thermal Decoloration; Polyurethan Film
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