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Proceedings Paper

The effects of UV irradiation in azo-derivatives
Author(s): Ionica Ionita; Ana-Maria Albu; Cristiana Radulescu; Ioana Daniela Dulama; Ionela Gavrila
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Paper Abstract

From all type of external stimuli the light rays are most commonly used because it involves only photochemical processes easily to control. One of the most studied of photochemical processes is photoisomerization groups, in particular the azobenzene groups. The azobenzene and his derivatives, known for Z(sin)-E(anti) reversible photoisomerization properties, have been extensively used as functional groups to synthesize various photosensitive compounds. The UV irradiation at different time of modified maleic anhydride - styrene copolymers with azo dye solutions were with UV light to increase the rate of Z(sin)-E(anti) isomerisation. The changes in the spectral absorption domain for azo compounds, a decrease in optic absorbance after irradiation, with a predisposition to come back at primary value was made with SECOMAMS750 UV–Vis spectrophotometer.

Paper Details

Date Published: 1 November 2012
PDF: 6 pages
Proc. SPIE 8411, Advanced Topics in Optoelectronics, Microelectronics, and Nanotechnologies VI, 84111J (1 November 2012); doi: 10.1117/12.964412
Show Author Affiliations
Ionica Ionita, Valahia Univ. of Târgovişte (Romania)
Ana-Maria Albu, Politehnica Univ. of Bucharest (Romania)
Costin D. Nenitescu Ctr. for Organic Chemistry (Romania)
Cristiana Radulescu, Valahia Univ. of Târgovişte (Romania)
Ioana Daniela Dulama, Valahia Univ. of Târgovişte (Romania)
Ionela Gavrila, Politehnica Univ. of Bucharest (Romania)

Published in SPIE Proceedings Vol. 8411:
Advanced Topics in Optoelectronics, Microelectronics, and Nanotechnologies VI
Paul Schiopu; Razvan Tamas, Editor(s)

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