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Thermal and optical properties of polyimides containing azobenzene groups

A. BURESCU1,* , I. SAVA1, G. LISA2, M. BRUMA1

Affiliation

  1. "Petru Poni" Institute of Macromolecular Chemistry, Aleea Grigore Ghica Voda 41 A, Iasi, Romania
  2. Department of Chemical Engineering, “Gheorghe Asachi” Technical University, Iasi, Romania

Abstract

Aromatic azopolyimides containing substituted azobenzene groups have been studied with regard to their thermal and photo-optical properties. These polymers are based on the reaction of tetramethyldisiloxane-1,3-bis(4’-phthalic anhydride) dianhydride with aromatic diamines having substituted azobenzene groups. The thermal analysis showed that these polymers had a good thermal stability, with decomposition temperature being above 300C. A detailed study of the thermal decomposition was performed by using TG-MS-FTIR technique which revealed a complex process dependent on the nature and position of the substituent on azobenzene group. All these polymers emitted an intense blue color light upon irradiation with UV light..

Keywords

Azopolyimides, Thermal properties, Blue photoluminescence.

Submitted at: Feb. 18, 2014
Accepted at: Nov. 13, 2014

Citation

A. BURESCU, I. SAVA, G. LISA, M. BRUMA, Thermal and optical properties of polyimides containing azobenzene groups, Journal of Optoelectronics and Advanced Materials Vol. 16, Iss. 11-12, pp. 1456-1462 (2014)