The effect of fluorine-substituted acrylate monomers on the electro-optical and morphological properties of polymer dispersed liquid crystals

被引:61
作者
Schulte, MD
Clarson, SJ
Natarajan, LV
Tomlin, DW
Bunning, TJ [1 ]
机构
[1] USAF, Res Lab, Mat & Mfg Directorate, MLPJ, Wright Patterson AFB, OH 45433 USA
[2] Univ Cincinnati, Dept MS&E, Cincinnati, OH 45221 USA
[3] SAIC, Dayton, OH 45431 USA
[4] TMC Inc, Beavercreek, OH 45434 USA
关键词
D O I
10.1080/026782900202651
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
The effects of fluorinated acryate monomers on the electro-optical and morphological properties of polymer dispersed liquid crystal (PDLC) films are reported. The partial fluorination of host polymer matrices resulted in improved optical properties and better defined morphologies. An enhancement in contrast ratio was observed for fluorinated systems containing trifluoroethyl acrylate (TFEA) and hexafluoroisopropyl acrylate (HFIPA). Conversely? the incorporation of methyl acrylate (MA)? a chemically similar non-fluorinated acrylate, resulted in no appreciable change in contrast ratio and an increase in relaxation time. Scanning electron microscopy morphological studies were conducted to understand further the influence of fluorinated monomers in PDLC systems.
引用
收藏
页码:467 / 475
页数:9
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