The Viscotek multi-detector gel
permeation chromatography (GPC) system from Malvern Instruments is proving to
be the ideal solution for researchers at The University of Texas at Austin
whose work is taking them to the very limits of what can be achieved by GPC.
The research team from the Department of Chemistry and Biochemistry is using
multiple Viscotek GPC instruments to help guide the development of new monomers
and polymers for use in high performance solar cells.
"We prepare many novel polymers and
need the most powerful GPC technology available in order to fully characterize
our materials," says Professor Christopher Bielawski. "The multiple
detectors of the Viscotek system provide us with critical compositional, structural,
and molecular weight information, particularly for some of our more challenging
materials. Equally important, however, is the support we've received from
Malvern. Their GPC experts have helped us to find new and innovative ways to
push the boundaries of the technique to new limits which have been beneficial
for our studies."
Professor Bielawski's group synthesises
new monomers, which are combined using a polymerization reaction to form new
polymers that feature novel structures and useful properties. They frequently
target very high molecular weight materials which are often only sparingly
soluble in the solvents typically used for GPC analysis. Here, Malvern has
provided support by exploring the application of relatively exotic eluents to
help the group establish new procedures to successfully acquire the information
required.
The Viscotek TDA Max, is a complete,
advanced, multi-detector GPC/size exclusion chromatography systems suitable for
all macromolecules. It is configurable with a comprehensive range of detectors:
refractive index; viscometry; light scattering (dynamic or static); and UV
(single wavelength or PDA). Powerful OmniSEC software simplifies control of the
whole system, combining the information from each detector to provide advanced
characterization parameters.
For further information visit
www.malvern.com/Viscotek
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