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The synthesis of different variants of azo-polyurethane polymers for optical recording

A. GERBREDERS1,* , J. ALEKSEJEVA1, U. GERTNERS1, J. TETERIS1

Affiliation

  1. Institute of Solid State Physics, University of Latvia

Abstract

The method of synthesis of photosensitive polyurethanes polymers on glycerine, toluenediisocyanate and Disperse Red 1 base was described. Two types of polymers with different amount of Disperse Red 1 fragments in macromolecules were compared. Films of the polymers were obtained from solutions in organic solvents on glass substrate. The dry film thickness was in the range of 3,5 – 4.5 μm. The transmission spectrums of the films were studied. Possibility of formation of side product in the process of synthesis was observed. The photobirefringence measurements of polymers films were performed. Surface relief grating (SRG) formation was observed during polarization holographic recording process. A profile of SRG was studied by AFM..

Keywords

Disperse Red 1, Photosensitive polymers, Photosensitive polyurethanes, Polarisation grating, Photoinduced birefringence.

Submitted at: June 2, 2011
Accepted at: Nov. 23, 2011

Citation

A. GERBREDERS, J. ALEKSEJEVA, U. GERTNERS, J. TETERIS, The synthesis of different variants of azo-polyurethane polymers for optical recording, Journal of Optoelectronics and Advanced Materials Vol. 13, Iss. 11-12, pp. 1559-1562 (2011)