RSC Advances p. 101900 - 101910 (2016)
Update date:2022-08-16
Topics:
Cozan, Vasile
Hulubei, Camelia
Airinei, Anton
Morariu, Simona
New reactive copolymers have been synthesized by copolymerization of two functional N-substituted-maleimides with styrene. These copolymers, with aldehyde and carboxyl functional groups, were further chemically modified with p-aminoazobenzene. After verification of the chemical structures by IR and 1H-NMR spectroscopy, the copolymers were characterized by solubility, X-ray diffraction measurements and their thermal stability was controlled by thermogravimetrical analysis (TGA). The thermal and thermotropic properties were investigated using polarizing optical microscopy (POM) and differential scanning calorimetry (DSC). A comparative study of the photoisomerization in solution and thermal recovery characteristics of azo copolymers vs. the corresponding maleimide model compound has been performed.
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