The effects of UV irradiation in azo-derivatives

被引：4
|
作者：
Ionita, Ionica [1 ,2 ,3 ]
Albu, Ana-Maria
Radulescu, Cristiana [1 ]
Dulama, Ioana Daniela [4 ]
Gavrila, Ionela [2 ]
机构：
[1] Valahia Univ Targoviste, Fac Sci & Arts, Dept Sci, 18-24 Unirii Bdvl, Targoviste 130082, Romania
[2] Univ Bucharest, Dept Polymer Sci, Bucharest R-010072, Romania
[3] Romanian Acad, Ctr Organ Chem, Bucharest R-060023, Romania
[4] Valahia Univ Targoviste, ICSTM, Targoviste R-130082, Romania
来源：
ADVANCED TOPICS IN OPTOELECTRONICS, MICROELECTRONICS, AND NANOTECHNOLOGIES VI | 2012年 / 8411卷
关键词：
photochromic; photoisomerization; irradiation; azo dye; CONTAINING POLYMERS;
D O I：
10.1117/12.964412
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
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.
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页数：6
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