The Role of Polymeric Adhesive Films in Corrosion Processes at the Solid/Solution Interface: A Surface Plasmon Resonance Study

该学院早期职业发展（CAREER）项目，在分析和表面化学计划的支持下，解决了在金属/溶液界面的生物腐蚀过程中粘合剂exopolymer膜的作用。 在为期三年的持续资助期间，乔治华盛顿大学的Georgiadis教授和她的学生将应用一套表面等离子体辅助光谱和互补的光谱和电化学技术来表征与金属，特别是铜的外聚合物介导的腐蚀的初始阶段相关的模型物种的吸附和表面反应，在生态相关的条件下。 本研究旨在解决三个主要目标：（1）了解生物腐蚀初始阶段金属/溶液界面的物理和化学;（2）描述表面腐蚀反应的机制;（3）探索表面能，表面组成和表面粗糙度对外聚合物吸附，外聚合物粘附和金属腐蚀速率的作用。 此外，在此赠款期间，教授Georgiadis将实施一个跨学科的教育发展计划，其中包括相关的新的和修订的课程设置，在本科教育研究的作用增加，并侧重于提高对化学和化学概念的核心重要性的广泛认识。 了解金属生物腐蚀的分子基础对于材料、制造和民用基础设施等重要技术领域至关重要。 在这个CAREER研究项目中，表面等离子体辅助光谱和补充实验技术将用于获得分子水平的见解，这个科学上复杂和经济上重要的领域。 这个职业生涯项目的教育发展方面应丰富和拓宽乔治华盛顿大学本科生和研究生的化学教育经验显着。

This Faculty Early Career Development (CAREER) project, supported in the Analytical and Surface Chemistry Program, addresses the role of adhesive exopolymer films in biocorrosion processes at metal/solution interfaces. During the tenure of this three-year continuing grant, Professor Georgiadis and her students at the George Washington University will apply a suite of surface plasmon assisted spectroscopies and complementary optical spectroscopic and electrochemical techniques to the characterization of the adsorption and surface reactions of model species relevant to the initial stages of exopolymer mediated corrosion of metals, particularly copper, under ecologically relevant conditions. This research is designed to address three broad goals: (1) to understand the physics and chemistry of the metal/solution interface in the initial stages of biocorrosion; (2) to describe the mechanisms of the surface corrosion reactions; and (3) to explore the role of surface energy, surface composition, and surface roughness on exopolymer adsorption, exopolymer adhesion, and metal corrosion rate. Also during this grant period, Professor Georgiadis will implement an interdisciplinary educational development plan that includes relevant new and revised course offerings, an increased role for research in undergraduate education, and a focus on increased broad awareness of the central importance of chemistry and chemical concepts. An understanding of the molecular basis of biocorrosion of metals is critical to technologically important areas such as materials, manufacturing, and civil infrastructure. In this CAREER research project, surface plasmon assisted spectroscopies and complementary experimental techniques will be used to gain molecular level insights into this scientifically complex and economically important area. The education development aspects of this CAREER project should enrich and broaden significantly the chemistry educational experience of George Washington Un iversity undergraduate and graduate students.