Processing of Mono- and Multi-layer Thin Films of ConductingSurface Active Polymers

本项目的目标是利用Langmuir-Blodgett（LB） 薄膜平衡技术将电活性聚合物加工成薄膜 具有明确的分子结构和新颖的电性能的薄膜形式 和光学性质。 为了实现这一点，表面活性剂 含有可聚合吡咯头基的单体将 操作成单层和多层薄膜使用LB 技术并随后转化成导电的 多层组件。 此外，溶剂可溶性，电- 导电聚吡咯和聚噻吩，其满足结构 LB操作的要求将被合成和制造 形成单层和多层薄膜。 无法编造 具有可控电活性聚合物的大面积薄膜 厚度一直是成功的主要绊脚石之一， 利用这些材料。 使用本项目开发的技术， 首次制备出结构明确的薄聚合物， 其中导电聚合物链被分离的膜 通过已知尺寸和方向的绝缘区域。 的 这些薄膜的电学和光学性质将在 为了确定分子超结构对 这些高度各向异性的组织的传输行为。

The objective of this project is to utilize the Langmuir-Blodgett (LB) film balance technique to process electroactive polymers into thin film forms with well defined molecular structures and novel electrical and optical properties. In order to accomplish this, surface active monomers containing polymerizable pyrrole head groups will be manipulated into mono- and multi-layer thin films using the LB technique and subsequently converted into electrically conductive multi-layer assemblies. In addition, solvent-soluble, electrically- conductive polypyrroles and polythiophenes that satisfy the structural requirements for LB manipulation will be synthesized and fabricated into mono- and multi-layer thin films. The inability to fabricate large area thin films of electroactive polymers with controllable thickness has been one of the major stumbling blocks to the successful utilization of these materials. Using the techniques developed in this project, it will be possible for the first time to prepare structurally well-defined thin polymer films in which an electrically conductive polymer chain is separated by insulating regions of known dimensions and orientation. The electrical and optical properties of these films will be evaluated in order to determine the influence of molecular superstructure on the transport behavior of these highly anisotropic organizations.