Layer-by-Layer Processing of Polymers: New Opportunities for Surface Modification and Thin Film Devices

本研究的目的是建立控制顺序吸附多离子层的结构和性能所需的基础知识基础，并利用这些知识来创建高性能发光薄膜器件和通用表面改性层。该计划将详细探讨工艺参数在决定由弱聚酸和强聚阳离子顺序吸附的双层制备的多层薄膜的结构、组织、层厚和性能方面的作用。重要的问题，如确定和控制层间的水平，层间的相互渗透和聚阴离子/多阳离子组成的内部双层和最外层的表面层将被检查，包括非共轭和共轭多离子和发光多离子。预计通过这些新研究获得的基础知识将有可能显著提高由共轭多离子制成的薄膜发光器件的性能，并创造一种新的表面改性层设备，适用于从防雾表面到隐形眼镜的应用。发光薄膜器件将以创造大面积、高效率的器件为目标进行研究。＊＊＊

ABSTRACT CTS-9729569 M. Rubner/MIT The objective of this research is to establish the fundamental knowledge base needed to control the structure and properties if sequentially adsorbed polyion layers and to use this knowledge to create high performance light emitting thin film devices and versatile surface modification layers. The program will explore in detail the role that processing parameters play in determining the structure, organization, layer thickness and properties of multilayer thin films fabricated from sequentially adsorbed bilayers of weak polyacids and strong polycations. Important issues such as determining and controlling the level of interlayer interlayer interpenetration and the polyanion/polycation composition of the internal bilayers and outermost surface layer will be examined including non-conjugated and conjugated polyions and light emitting polyions. It is anticipated that the fundamental knowledge gained by these new studies will make it possible to significantly enhance the performance of thin film light emitting devices fabricated from conjugated polyions and to create a new facility of surface modification layers suitable for applications ranging from anti-fogging surfaces to contact lenses. Light emitting thin film devices will be examined with the goal of creating large area, high efficiency devices. ***