立体控制合成和所有cis聚乙烯乙烯 (PPVs) 的光学特性:PPVs的直接模式的方法
Hiroyuki Katayama1, Masato Nagao, Tatsuro Nishimura
1International Research Center for Elements Science (IRCELS), Institute for Chemical Research, Kyoto University, Uji, Kyoto 611-0011, Japan. hiroyuki@scl.kyoto-u.ac.jp
Journal of the American Chemical Society
|March 24, 2005
概括
研究人员合成了纯粹的,全cis聚乙烯乙烯基 (PPVs),并发现它们经过光异构化转化为PPVs. 这种特性使PPV在石英基板上能够直接微观地模拟PPV.
科学领域:
- 聚合物化学 聚合物化学
- 有机电子 有机电子
- 材料科学 材料科学 材料科学
背景情况:
- 聚乙烯 (PPV) 在有机电子产品中至关重要.
- 控制PPV的几何纯度 (cis/trans异构体) 是调整其特性所必不可少的.
- 现有的合成方法可能无法达到高几何纯度.
研究的目的:
- 开发一种合成几何纯粹的方法,所有cis聚乙烯 (PPVs).
- 为了研究这些全-cis PPVs的光异构化行为.
- 为了证明这种光异构化在材料图案设计中的新应用.
主要方法:
- 使用特定的二博酸和二乙烯单体的苏苏基-米亚乌拉型多重凝结.
- 催化 (Z) 选择性双水化为前体合成.
- 使用N-bromosuccinimide进行化.
- 在溶液和固体状态下进行光异构化研究.
- 在石英基板上的微尺度图案.
主要成果:
- 成功合成了几何纯净的,全cis PPV.
- 从all-cis到trans-PPV的单向光异构的观察.
- 通过光异构化对PPV进行受控微观图案的演示.
结论:
- 在几何上纯净的全cis PPV 可以通过所述的苏苏基-米亚乌拉多重凝结合成.
- 所有cis PPVs到跨PPVs的光异构化是一个强大的现象,可用于各种状态.
- 这种光异构化为PPV材料的直接高分辨率图案设计提供了一条新途径.
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