Blue Light Photopolymerization for Polymer-Stabilized Liquid Crystals |
| A. Walewska
Faculty of Advanced Technology and Chemistry, Institute of Applied Physics, Military University of Technology, 2 gen. S. Kaliskiego St., 00-908 Warsaw, Poland |
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| Polymer-stabilized liquid crystals represent composite materials that consist of polymer networks embedded in a continuous phase of liquid crystals. These materials are recognized for their fast switching times and low operational voltages, making them highly suitable for various optoelectronic applications. Traditionally, ultraviolet light photopolymerization has been employed to fabricate polymer-stabilized liquid crystals. However, this method poses significant challenges, especially with certain liquid crystal formulations that exhibit high birefringence and are unstable under ultraviolet exposure. In turn, blue light photopolymerization offers an attractive alternative, providing enhanced stability and compatibility across a broader range of liquid crystal compositions. In this study, the synthesis and characterization of polymer-stabilized liquid crystals using blue light photopolymerization were investigated, focusing on the effects of light intensity, initiator and monomer concentrations, and curing time on the electro-optical properties of the resulting materials. The findings contribute valuable insights for optimizing device performance and advancing liquid crystal technology. |
DOI:10.12693/APhysPolA.146.526 topics: nematic liquid crystals, polymer network, response time |