Electro-optic and phase transition studies on polymer-dispersed liquid crystal films

Doina Manaila-Maximean; Maurizio Furlani; Rodica Bena; Victor Stoian; Constantin Rosu

doi:10.1117/12.378703

23 February 2000 Electro-optic and phase transition studies on polymer-dispersed liquid crystal films

Doina Manaila-Maximean, Maurizio Furlani, Rodica Bena, Victor Stoian, Constantin Rosu

Proceedings Volume 4068, SIOEL '99: Sixth Symposium on Optoelectronics; (2000) https://doi.org/10.1117/12.378703
Event: SIOEL: Sixth Symposium of Optoelectronics, 1999, Bucharest, Romania

Abstract

We obtained polymer dispersed liquid crystal (PDLC) films using a nematic liquid crystal E7 and polymethyl methacrylate by the Solvent Induced Phase Separation method. Using the Thermally Stimulated Depolarization Current method we determined the clearing point of the pure liquid crystal and the PDLC films. The glass transition temperature of the PMMA matrix has also been determined. The result have been compared with those obtained by Differential Scanning Calorimetry. During the TSDC measurements we registered the optical transmission as a function of temperature, thus the thermal switch operation being demonstrated.

Citation Download Citation

Doina Manaila-Maximean, Maurizio Furlani, Rodica Bena, Victor Stoian, and Constantin Rosu "Electro-optic and phase transition studies on polymer-dispersed liquid crystal films", Proc. SPIE 4068, SIOEL '99: Sixth Symposium on Optoelectronics, (23 February 2000); https://doi.org/10.1117/12.378703

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