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Optical and Calorimetrical Studies of Liquid Crystalline Materials Doped with Nanoparticles
Author(s) -
Elouali Malika,
Beyens Christophe,
Elouali Fatima Zohra,
Yaroshchuk Oleg,
Abbar Boucif,
Maschke Ulrich
Publication year - 2011
Publication title -
macromolecular symposia
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.257
H-Index - 76
eISSN - 1521-3900
pISSN - 1022-1360
DOI - 10.1002/masy.201150515
Subject(s) - liquid crystal , materials science , nanoparticle , monomer , polymer , doping , chemical engineering , crystal (programming language) , isotropy , nanotechnology , optics , composite material , optoelectronics , engineering , physics , computer science , programming language
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.