SGER: Surface Roughness at the Nanomolecular Level

摘要-990992a。乌尔曼理工大学将研究具有分子控制随机粗糙度的模型表面，所有这些都基于刚性硫醇在具有大原子平坦面积的金表面上的自组装。我们将使用简单的聚合物液体来研究这些分子粗糙表面的润湿特性；我们还将研究液晶分子和聚合物在这些表面上的吸附。研究的目的是回答以下问题：(1)用不同分子长度的刚性硫醇自组装，能否以分子设计的粗糙度制备模型表面？(2)是否存在临界分子粗糙度，(3)聚合物液体对粗糙表面的润湿如何取决于分子质量？(4)表面张力和表面粗糙度之间的关系是什么？它们是如何影响润湿的？(5)吸附是如何依赖于分子粗糙度的？(6)利用与分子粗糙度表面的相互作用，热能能否被用作工程聚合物表面的驱动力？在这个为期一年的探索性研究计划中，将为开始回答这些问题奠定基础。

ABSTRACTCTS-990992A. Ulman Polytechnic U.Model surfaces with molecularly controlled random roughness will be investigated, all based on the self-assembly of rigid thiols on gold surfaces with large atomically flat areas. The wetting properties of these molecularly rough surfaces will be studied using simple polymeric liquids; the adsorption of liquid crystalline molecules and of polymers to these surfaces will also be investigated.The research is aimed at answering the following questions: (1) Can model surfaces be prepared wit molecularly designed roughness using self-assembly of rigid thiols of different molecular lengths? (2) Does critical molecular roughness exists, beyond which the wetting by simple and polymeric liquids is affected? (3) How does the wetting of rough surfaces by a polymeric liquid depend on molecular weight? (4) What is the relation between surface tension and surface roughness and how do they affect wetting? (5) How does adsorption depend on molecular roughness? (6) Can enthalpy be used as the driving force for engineering polymer surfaces using interactions with molecularly roughness surfaces?A foundation will be established to start answering these questions in this one-year exploratory research program.