COLL 508 |
| Nicholas L Abbott, Department of Chemical and Biological Engineering, Department of Chemical and Biological Engineering, University of Wisconsin, 1415 Engineering Drive, Madison, WI 53706-1691 |
| It has long been known that the orientations assumed by liquid crystals near surfaces are often controlled by a precarious and complex balance of long-ranged (elastic) and short-ranged (e.g., chemically-specific) interactions. These interactions are defined by the structure of surfaces over a wide range of length scales (0.1-1000nm). Over the past decade, advances in the design and synthesis of surfaces with controlled, nanometer-scale topography and well-defined chemical functionality have made possible a new level of control over the design of surfaces for the anchoring of liquid crystals. These advances have permitted unambiguous identification and design of the interactions between liquid crystals and surfaces. This talk will address recent attempts to engineer electrical double layers within liquid crystals and to couple the existence and structure of the double layer to the orientation of a liquid crystal. |
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Symposium in Memory of Arthur W. Adamson
2:00 PM-5:20 PM, Thursday, April 1, 2004 Marriott -- Orange County 3, Oral
Division of Colloid and Surface Chemistry |