阿佐托兰液晶聚合物:由于光诱导的对齐变化,双折度发生了巨大的变化
Kunihiko Okano1, Osamu Tsutsumi, Atsushi Shishido
1Chemical Resources Laboratory, Tokyo Institute of Technology, R1-11, 4259 Nagatsuta, Midori-ku, Yokohama 226-8503, Japan.
Journal of the American Chemical Society
|November 30, 2006
概括
开发了新型的液晶聚合物 (LCP),其中含有阿佐托兰的部分. 这些LCP表现出显著的光响应行为和高双折射率,使光照暴露后光学特性发生有效的变化.
科学领域:
- 聚合物科学 聚合物科学
- 材料科学 材料科学 材料科学
- 光学是什么?光学是什么?光学是什么?
背景情况:
- 液晶聚合物 (LCP) 是具有独特光学和机械性能的先进材料.
- 光敏材料在暴露于光线时可以改变其性能,为动态应用提供了潜力.
- 双折射率 (Deltan) 是一个关键的光学属性,与光如何通过异性质材料传播有关.
研究的目的:
- 合成新型LCPs,其中包含长亚托兰部分.
- 为了研究这些LCP的化学结构及其光响应性行为之间的关系.
- 评估合成的LCP的光学特性,特别是双断率.
主要方法:
- 合成含有阿佐托兰单元的新型液晶聚合物.
- 制造均对齐的LCP薄膜.
- 在宽波长范围内测量双折射率 (Deltan).
- 通过分析对齐和Deltan. 的变化来研究光响应性行为.
主要成果:
- 所有合成的LCP薄膜在宽波长范围内都表现出高的双折射率 (Deltan).
- 在亚托兰部分中含有两个亚烯单元的LCP显示出最有效的调整变化.
- 观察到双断率 (>/=0.65) 的显著变化,表明对齐状态的Deltan. 的有效转换.
- 该研究确立了化学结构和光响应光学性能之间的明显联系.
结论:
- 新型LCPs含有阿佐托兰部分具有出色的光响应能力.
- 加入亚博烯单元增强了双折射的光响应调制.
- 这些材料对于需要可调节光学性能的应用具有前景.
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