Alumna
Mary Jo Biddy
Education
Research
My research interest lies in the molecular simulation of complex
fluids. With the rapidly increasing power of computers and the
continued improvement of molecular modeling algorithms and
methods, molecular simulations are becoming a commonplace tool in
advanced chemical engineering research. Molecular simulations
provide an ideal complement to laboratory research. A single
simulation can measure essentially all of the physical
properties of interest, whereas it would take many experiments to
accomplish the same goal. For example, rather than determining
only the miscibility of two polymers, one can simultaneously
determine the density, viscosity, vapor pressure, heat of
solution, and heat of vaporization just to name a few properties.
Molecular modeling also provides atomic level structural
information, thereby providing insight as to how the chemicals
interact and what molecular characteristics are critical to the
observed behavior. For instance, polymer miscibility may be
better understood when the strength of hydrogen bonding between
specific atoms on the molecules can be observed and quantified.
Simulation techniques add the flexibility of studying any
molecule without the expense of chemically synthesizing a pure
sample for analysis. They can, therefore, serve as a guide to
experiments before considerable time and money are spent on a
specific system. Simulations of large molecules, however,
require large amounts of computer time. For example, simulations
of polymeric blends require months to calculate on
supercomputers. By developing more advanced algorithms and
methods and exploiting specific computer architectures, the
required simulation time can be reduced by orders of magnitude.
The greatest opportunity in my research lies in the creation of
simulation programs which will become an effective research
tool. Not only will these programs allow the use of simulations
with greater frequency to guide experimental work, but more
complex systems also can be explored with ease.
Publication
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Contact
Dr. Mary Jo Biddy
BP America Inc.
Naperville, IL
U.S.A.
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