14 October 1999 Improvement in holographically formed polymer-dispersed liquid crystal performance through acrylated monomer functionality studies
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Abstract
We investigate the effect of monomer blends on the performance of holographically-formed polymer dispersed liquid crystals (H-PDLCs). Difunctional, trifunctional, and hexafunctional urethane acrylate resins are mixed in different ratios to yield monomers characterized by an effective functionality. Reflection H-PDLCs are formed using the different blends. Reflection efficiency and voltage response are measured. Monomer blends prepared with trifunctional/hexafunctional constituents are formed to yield H-PDLCs with higher reflection efficiency than their difunctional/hexafunctional counterparts, but require higher voltages to switch. Scanning electron microscope investigations are also undertaken.
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Adam K. Fontecchio, Christopher C. Bowley, Gregory P. Crawford, "Improvement in holographically formed polymer-dispersed liquid crystal performance through acrylated monomer functionality studies", Proc. SPIE 3800, Liquid Crystals III, (14 October 1999); doi: 10.1117/12.365808; https://doi.org/10.1117/12.365808
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KEYWORDS
Liquid crystals

Polymers

Holography

Glasses

Modulation

Scanning electron microscopy

Polymerization

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