Functionalized Rigid Conjugated Aromatic Polymers

冈本芳烃共轭刚性棒聚合物在高性能工程材料、导电聚合物、非线性光学和激光材料等多种技术中发挥着重要作用。近年来芳香共轭聚合物及其共混物在各种光电子技术中得到了应用。基于共轭芳香族聚合物的电致发光器件因其易于大面积制造、颜色选择广泛和热稳定性而受到越来越多的关注。然而，这些材料在溶液和固体状态下与第二聚合物混合时的发光特性还没有得到充分的研究。本研究的目的是扩大过去的工作，包括几种新的刚性芳香族聚合物。(1)深入研究芳香刚性聚合物共混物中发光增强和发射波长改变的新现象，并构建有前途的电致发光器件。(2)采用非共价键接枝共聚物作为增容剂的方法设计新型弹性体增强刚性聚合物。(3)测量刚性聚合物在水和有机溶剂中的弛豫性能，并与生物体系进行比较。显示技术在从笔记本电脑屏幕到航天电子设备的许多应用中都得到了应用。用于显示技术的有机材料的开发是美国与日本和欧洲展开激烈竞争的领域。提出的工作有可能为发光器件提供新的候选材料。在设备应用的同时，构建分子复合材料的新方法可能会导致高技术用途的强而轻的塑料。在这些领域受过培训的研究生将成为各行业的抢手货。＊＊＊

9802180 Okamoto Aromatic conjugated rigid rod polymers play an important role in a number of diverse technologies including high performance engineering materials, conductive polymer, nonlinear optical and laser materials. Recently aromatic conjugated polymers and their blends have found applications in various photoelectronic techniques. Electroluminescence devices based on conjugated aromatic polymers have attracted increasing attention due to easy fabrication of large areas, wide choices of colors and thermal stability. However, the luminescence properties of these materials both in solution and in the solid state when blended with a second polymer have not been fully investigated. The objective of this research is to expand past work to include several new rigid aromatic polymers. (1) The novel phenomena of luminescence enhancement and alteration of emission wavelengths in blends of aromatic rigid polymers will be studied in depth and electroluminescence devices will be constructed for promising candidates. (2) An approach using non-covalently bonded graft copolymers as compatibilizers will be adopted to design novel elastomer-reinforced rigid polymers. (3) The relaxation properties of the rigid polymers will be measured in water and organic solvents and compared with biological systems. %%% Display technology finds itself in many applications from laptop screens to aerospace electronic devices. The development of organic materials for use in display technology is an area in which the United States is in keen competition with Japan and Europe. The proposed work has the potential of offering new candidates for light emitting devices. Concurrent with device applications, the novel approach to construct molecular composites may lead to strong but light-weight plastics for high technology uses. Graduate students trained in these areas will be sought-after employees for industries. ***