TITLE:
"Measuring the
small currents generated by polarization at polymer interfaces by
thermally stimulated current techniques."
SPEAKER:
Professor Michael S. Ellison,
TIME: Thursday Feb. 17, 2000 at 4:00 PM
PLACE: George P. Williams, Jr. Lecture Hall, (Olin 101)
The transfer of charge across the interface between two materials brought into contact was studied by measuring the small currents produced when layered films composed of two dissimilar films were first heated then held under isothermal conditions. It was found that, given a fixed electrode orientation, the polarity of the current generally reversed when the relative position of the films were reversed. The sense of the current was in agreement with that expected from the polymer work functions.
Professor Ellison will also give a general overview of the graduate research programs in the School of Textiles, Fiber and Polymer Science at Clemson University. This may include finite element analysis of deformation in fabric structures, chaotic mixing as a route to in-situ development of reinforcing structures in filaments, intrinsically conductive polymer fibers, and polymer optical fibers production by coextrusion.