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A. AIRINEI1,* , M. HOMOCIANU1, N. FIFERE1, C. GAINA1, V. GAINA1
New bismaleimides containing azobenzene chromophores obtained by condensation reaction of maleic anhydride with azoaromatic diamines and their corresponding polytioetherimides were characterized by spectral and thermal methods. Thin films of polythioetherimides were corona poled and the orientational order parameter was determined. These polymers show good thermal stability with 10% weight loss temperature above 285 °C. Exposing to UV irradiation the bismaleimide derivatives based on Disperse Red 19 are photochemically stable while the bismaleimide derivatives based on 2,4-diamino-2’, 4’-methyl azobenzene exhibited trans-cis-trans isomerization in DMF solutions. Kinetics of isomerisation reaction of azobenzene moieties was monitored by electronic absorption spectra..
Azobismaleimide, UV-Vis absorption spectra, Corona poling, Isomerization.
A. AIRINEI, M. HOMOCIANU, N. FIFERE, C. GAINA, V. GAINA, Optical properties of some bismaleimide derivatives, Optoelectronics and Advanced Materials - Rapid Communications, 5, 6, June 2011, pp.655-660 (2011).
Submitted at: March 28, 2011
Accepted at: June 9, 2011
Optoelectronics and Advanced Materials - Rapid Communications
(2022): 0.5 - 2022 Journal Citation Reports (Clarivate Analytics, 2023)
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