Analytical Voltammetry

[9711205]这项工作的目的是了解大离子和小反离子之间的相互作用。具体的重点是测量聚电解质溶液中的反输运，以(1)通过实验建立输运对线性电荷密度的依赖；(2)建立了综合实用的静电相互作用与复合体形成综合效应模型；(3)实验确定聚电解质形态的影响。带电胶体和胶束也将被研究，以及金属离子与大离子结合的电化学动力学。在由带电聚合物、胶体或胶束等带电物质组成的材料系统中，提高预测宏离子自然系统行为的能力，设计和控制它们的行为，对自然界和商业都很重要。例子包括植物中粘土颗粒对营养离子的运输，以及多电解质DNA的离子结合特性。涂料、切削液、药物输送系统、粘合剂和润滑涂层都是宏离子重要工业用途的例子。＊＊＊

9711205 Fornes The aim of this work is to understand interactions between macroions and small counterions. The specific focus is to measure counterion transport in solutions of polyelectrolytes to (1) establish experimentally the dependence of transport on linear charge density; (2) to elaborate a comprehensive and practical model for the combined effect of electrostatic interaction and complex formation; and (3) to determine experimentally the effects of polyelectrolyte morphology. Charged colloids and micelles will also be investigated, as ill the electrochemical kinetics of reduction of metal ions bound to macroions. %%% Improving the ability to predict the behavior of natural systems of macroions, and designing and controlling their behavior in materials systems consisting of charged polymers, colloids, or assemblies of charged species such as micelles are important to both nature and commerce. Examples include the transport of nutrient ions by clay particles in plants, and the ion binding properties of the polyelectrolyte DNA. Paints, cutting fluids, drug delivery systems, adhesives and lubricating coatings are all examples of important industrial uses for macroions. ***