Tailored Interfaces with Amphiphilic Polymers

这项建议是美国和美国之间的三方合作。 明尼苏达州，普林斯顿大学和美国。在亚拉巴马， 相互加强合成化学方面的专业知识， 材料科学，以获得所需的信息， 两亲聚合物界面物理化学 分散剂 具体做法是研究直接 系统变化对分子量的影响，化学 结构、聚合物结构和其他可能 可用于定制两亲聚合物 分散剂，对相互作用，决定了 胶体分散体的宏观性质。 的影响 吸附态分子特征系统变异 两亲嵌段共聚物层对相互作用的影响 将研究两个这样的宏观层之间的力。 具有明确分子量的聚合物分子， 结构将通过阴离子聚合来合成 并且其特征在于嵌段分子量， 组成和架构。 力的直接测量 将在吸附层之间进行。 理论建模 用自洽场测量的相互作用曲线 理论将得到贯彻。 与测量和 已经确定了定性建模的相互作用， 宏观色散特性响应可以 直接关系到的分子特征， 分散剂

This proposal is for a three-way collaboration between U. Minnesota, Princeton, and U. of Alabama, with different but mutually enhancing expertise in synthetic chemistry and materials science, to obtain needed information on the interfacial physical chemistry of amphophilic polymer dispersants. The specific approach is to study the direct effects of systematic variations os molecular weight, chemical structure, polymer architecture, and other factors which might possibly be used for tailoring amphophilic polymer dispersants, on the interactions that determine the macroscopic properties of colloidal dispersions. Effects of systematic variation of molecular characteristics of adsorbed layers of amphophilic block copolymers on the interaction forces between two such macroscopic layers will be studied. Polymers molecules with well-defined molecular weights and architectures will be synthesized by anionic polymerization and characterized with respect to block molecular weights, compositions, and architectures. Direct measurement of forces between adsorbed layers will be made. Theoretic modelling of the measured interaction profiles using self-consistent field theory will be carried out. With the measured and qualitatively modelled interactions having been determined, the response of macroscopic dispersion properties can be related in a direct way to molecular characteristics of the dispersion agents.