Experimentally,
great strides have been made in understanding surfactant aggregation.
Those experimental studies, however, have produced little insight into
understanding the behavior of surfactants at the molecular level; the
mechanics of which are still to be explored. Consequently, new
developments in molecular dynamics (MD) simulation have been directed
toward this area of study.
This research
examines dilute and concentrated surfactant systems at the solid-liquid
interface. MD simulations are run to study dodecyltrimethyl ammonium
bromide (C
12TAB) surfactants and micelles in water, on
silica and graphite surfaces, and during indentation. Surfactants have
been used for dispersion in detergents, paints, pharmaceutics, and
microelectronics such as in chemical mechanical polish (CMP) processing
of silicon wafers.
This work is supported by the
Particle Science and Engineering Center
at the University of Florida under Grant No. EEC-9402989 and is carried out in collaboration with
Professor Brij Moudgil and
Professor
Jose Fortes (University of Florida). Any opinions, findings and conclusions or recomendations expressed in this material are those of the author(s) and do not necessarily reflect the views of the National Science Foundation (NSF).