Self-Assembly of Amphiphilic Polymers and Polymer/Surfactant Systems at Interfaces, Comparative Study of Solid/Liquid and Air/Liquid Interfaces

表面活性剂和聚电解质之间的相互作用在界面和界面之间的空间限制的影响下将被调查。该项目旨在更好地理解这个问题，即聚电解质和带相反电荷的表面活性剂在水介质中的合作相互作用如何受到带电或不带电界面的影响。特别是，对于固定基底附近的聚电解质/表面活性剂复合物，聚电解质-表面活性剂、聚电解质-基底和表面活性剂-基底类型的相互作用之间的竞争还没有很好地理解。具体而言，反离子交换在聚集体形成过程中的意义将被研究。此外，它是要澄清是否和在何种条件下，表面活性剂/表面活性剂复合物结合到带电的表面，以及是否在这个结合过程中的抗衡离子。为了澄清这些问题，将通过量热测量研究双链、表面活性剂和基底表面之间的相互作用。吸附层的结构将通过反射计测量来表征。调查在薄的独立膜的水表面活性剂/水溶液，以及水/表面活性剂聚集体的孔中孔二氧化硅玻璃从该项目的中心方面。

The interaction between surfactants and polyelectrolytes at interfaces and under the influence of the spatial confinement between interfaces will be investigated. The project aims at a better understanding of the question, how the cooperative interaction between polyelectrolytes and opposite charged surfactants in aqueous media is influenced by the presence of a charged or uncharged interface. In particular, for polyelectrolyte/surfactant complexes near a fixed substrate the competition between the interactions of the type polyelectrolyte-surfactant, polyelectrolyte-substrate, and surfactant-substrate is not well understood. Specifically, the significance of the counter ion exchange in the aggregate formation process will be studied. Furthermore it is to be clarified whether and under which conditions polyelectrolyte/surfactant-complexes are bound to charged surfaces and whether the counter ions in this binding process. To clarify these questions, the interaction between polyelectrolyte chains, surfactant and substrate surfaces will be studied by calorimetric measurements. The structure of the adsorbed layers is to be characterized by reflectometry measurements. Investigations in thin free-standing films of aqueous surfactant/polyelectrolyte solutions, as well as polyelectrolyte/surfactant aggregates in the cavities of mesoporous silica glasses from central aspects of the project.