SGER: Surface Roughness at the Nanomolecular Level

摘要-990992 A。Ulman Polytechnic U.模型表面与分子控制的随机粗糙度将进行研究，所有的基础上的自组装刚性硫醇金表面与大原子平面面积。本研究将利用简单的高分子液体来研究这些分子粗糙表面的润湿性质，并研究液晶分子和高分子在这些表面上的吸附，旨在回答以下问题：（1）不同分子长度的刚性硫醇的自组装能否制备具有分子设计粗糙度的模型表面？(2)是否存在临界分子粗糙度，超过该粗糙度，简单液体和聚合物液体的润湿会受到影响？(3)聚合物液体对粗糙表面的润湿如何取决于分子量？(4)表面张力和表面粗糙度之间的关系是什么？它们如何影响润湿？(5)吸附如何依赖于分子粗糙度？(6)焓可以作为工程聚合物表面的驱动力，利用分子粗糙度表面的相互作用？将建立一个基金会，在这个为期一年的探索性研究计划中开始回答这些问题。

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.