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Vertical liquid crystal orientation of phytochemical-based oryzanol modified polystyrene

机译:植物化学植物盐酸盐改性聚苯乙烯的垂直液晶取向

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摘要

Using plant-derived oryzanol, we synthesized a series of phytochemical-based oryzanol-modified polystyrenes (PORZ#, # = 20, 40, 60, 80, or 100, where # is the mole fraction of the oryzanol moiety) using polymer modification reactions in order to investigate their liquid crystal (LC) orientation behaviors. Generally, an LC cell made from polymer films with a higher mole fraction of the oryzanol side group showed vertical LC orientation behavior. The vertical orientation behavior was strongly correlated with the surface energy of these polymer films. For instance, the vertical orientation was observed when the polymer's surface energy, which is influenced by the nonpolar and long carbon groups, was less than about 40.42 mJ m(-2). Good electro-optical properties, such as the aligning stabilities at 250 degrees C and ultraviolet (UV) irradiation of 20 J cm(-2), the voltage holding ratio, and the residual DC voltage (R-DC), were observed for the LC cells fabricated using PORZ100 as an eco-friendly LC orientation layer.
机译:使用植物衍生的oryzanol,我们合成了一系列植物化学的植物基葡萄醇改性的聚苯乙烯(Porz#,#= 20,40,60,80,或100,其中#是使用聚合物改性反应的摩尔部分的摩尔部分)为了研究其液晶(LC)取向行为。通常,由聚合物膜制成的具有较高摩尔级数的甲羟醇侧组的LC电池显示出垂直的LC取向行为。垂直方向行为与这些聚合物膜的表面能强烈相关。例如,当聚合物的表面能受不极性和长碳基团的聚合物的表面能小于约40.42mJ m(-2)时,观察到垂直取向。良好的电光性能,例如250℃的对准稳定性和紫外(UV)照射为20JCm(-2),电压保持比和残余直流电压(R-DC),用于使用PORZ100制造的LC电池作为环保LC取向层。

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  • 来源
    《RSC Advances》 |2018年第3期|共7页
  • 作者单位

    Dong A Univ Dept Chem Engn 37 Nakdong Daero 550beon Gil 37 Busan 604714 South Korea;

    Dong A Univ Dept Chem Engn 37 Nakdong Daero 550beon Gil 37 Busan 604714 South Korea;

    Dong A Univ Dept Chem Engn 37 Nakdong Daero 550beon Gil 37 Busan 604714 South Korea;

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  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 化学;
  • 关键词

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