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POSTPONED: IGERT SEMINAR (Trainees Only)

Benjamin Ocko, Brookhaven National Lab
CCR 201, Busch Campus, Rutgers
Thursday, March 7, 2013 - 2:00pm

 

POSTPONED until Thursday, May 2, 2013

SURFACE INDUCED ORDER IN MOLECULAR AND IONIC LIQUIDS

We have carried out surface x-ray scattering measurements to determine the phase behavior of molecular and polymer systems in contact with solid walls and at the vapor interface.  For molecular systems the interfacial interactions may give rise to surface freezing, where a single or double frozen layer informs at the interface over a range of temperature where the contacting bulk is molten.  Our recent results at oxide surfaces show that the surface frozen temperature depends on the specific interactions with the interface.  For ionic liquids, the surface induced ordering can extend from a single layer to many layers.  Recent results from the BNL Soft Matter Group and its collaborators will be presented.

Acknowledgement: This research is supported by the U.S. DOE Office of Science and Office of Basic Energy Sciences under contract No. DE-AC-02-98CH10886

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