Stablized Molecular Assemblies for Advanced Synthesis and Sensing Technologies

在这项由化学系分析和表面化学计划支持的工作中，路易斯安那州立大学巴吞鲁日分校的罗宾·L·麦卡利将研究如何就地修饰自组装单分子膜(SAM)。该项目的一个主要目的是使用电化学聚合来操纵自组装膜中的反应，以产生具有特定性质的表面。化学使用导电薄膜聚(吡咯)聚合物，这些聚合物是由取代的烷基硫醇连接到金表面产生的。许多仪器方法将被用来研究所制作的电影。一种是衰减全内反射傅里叶变换红外光谱，它特别有用，因为它产生了关于材料表面化学成分的信息。扫描隧道显微镜和扫描力显微镜用于提供表面形貌和结构的信息。其目的是将薄膜材料的宏观性质与分子结构相关联。这项研究将研究在金表面形成有机薄膜所涉及的化学控制方法，作为薄膜的物理支撑。其目的是生产具有物理和化学特性的薄膜材料，以适应特定的应用。从长远来看，这将使构建用于环境监测和其他目的的传感器成为可能，这些传感器具有高分子特异性。

In this work, supported in the Analytical and Surface Chemistry Program in the Chemistry Division, Robin L. McCarley of Louisiana State University, Baton Rouge, will study ways to modify self-assembled monolayers (SAMs) on an in place basis. A major thrust of the project is to use electrochemical polymerization to manipulate reactions in SAMs to produce surfaces with specific properties. The chemistry uses conducting thin film poly(pyrrole) polymers produced from substituted alkyl thiols attached to gold surfaces. A number of instrumental methods will be used to study the films that are produced. One, attenuated total internal reflection Fourier transform infrared spectroscopy, is particularly useful because it produces information about the chemical composition of the surface of the material. Scanning tunneling microscopy and scanning force microscopy are to be used to provide information about surface topography and structure. The objective is to correlate macroscopic properties of the thin film materials with molecular structure. This investigation will study ways to control the chemistry involved in the formation of organic thin films constructed on gold surfaces which serve as a physical support for the film. The purpose is to produce film materials with physical and chemical characteristics tailored to a specific application. In the long term, this will enable construction of sensors for environmental monitoring and other purposes which have high molecular specificity.