Article

Optical and Calorimetrical Studies of Liquid Crystalline Materials Doped with Nanoparticles

  1. Malika Elouali1,2,
  2. Christophe Beyens1,
  3. Fatima Zohra Elouali1,3,
  4. Oleg Yaroshchuk4,
  5. Boucif Abbar2,
  6. Ulrich Maschke1,*

Article first published online: 17 JUN 2011

DOI: 10.1002/masy.201150515

Issue

Macromolecular Symposia

Macromolecular Symposia

Special Issue: Polymer-Solvent Complexes and Intercalates POLYSOLVAT-8

Volume 303, Issue 1, pages 108–113, May 2011

Additional Information

How to Cite

Elouali, M., Beyens, C., Elouali, F. Z., Yaroshchuk, O., Abbar, B. and Maschke, U. (2011), Optical and Calorimetrical Studies of Liquid Crystalline Materials Doped with Nanoparticles. Macromol. Symp., 303: 108–113. doi: 10.1002/masy.201150515

Author Information

  1. 1

    Unité Matériaux et Transformations (UMET), UMR 8207–CNRS, Bâtiment C6, Université Lille 1- Sciences et Technologies, 59655 Villeneuve d'Ascq Cedex, France

  2. 2

    Département de Physique, Université Djillali Liabès, 22000 Sidi Bel Abbès, Algeria

  3. 3

    Laboratoire de Recherche sur les Systèmes Biologiques et la Géomatique, Université de Mascara, Route de Mamounia, 29000 Mascara, Algeria

  4. 4

    Institute of Physics, NASU, prospect Nauki 46, 03680 Kyiv, Ukraine

*Unité Matériaux et Transformations (UMET), UMR 8207–CNRS, Bâtiment C6, Université Lille 1- Sciences et Technologies, 59655 Villeneuve d'Ascq Cedex, France Fax: (+33)-(0) 3 20 43 43 45.

Publication History

  1. Issue published online: 17 JUN 2011
  2. Article first published online: 17 JUN 2011

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Keywords:

  • differential scanning calorimetry (DSC);
  • glass transition;
  • morphology;
  • nanoparticles;
  • photopolymerization

Abstract

Summary: Electro-optical properties of Polymer Dispersed Liquid Crystal (PDLC) films doped with different nanoparticles (NPs), as well as optical and morphological properties of liquid crystal/NP mixtures have been investigated. PDLC films were prepared by UV irradiation of thiol-ene monomers and liquid crystal E7 in the presence of a small amount (0.5 and 1 wt.%) of nanoparticles. The presence of NP strongly influence the properties of liquid crystal/NP mixtures. In particular, adding nanoparticles results in a decrease of the glass and nematic-isotropic transition temperatures of the LC, suggesting that strong interactions occur between LC and nanoparticles.

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