The
installation of a multi-detection Viscotek TDAmax gel permeation
chromatography (GPC) system from Malvern Instruments is enabling Dow
Corning Europe S.A. in Belgium to meet customer demand for increasingly
comprehensive polymer structure data. In addition, Dow Corning experts
are saving resources by applying rapid, cost-effective GPC methods to
pre-select the most promising new polymer candidates, significantly
reducing the number of nuclear magnetic resonance (NMR) investigations
required wherever possible.
"We're
seeing increased demand from our customers for structural data and for
more in-depth characterization of polymer and co-polymer samples," said
Mr Stephane Cornelis, Global Business Service - Analytical Sciences,
Dow Corning Europe S.A.
"Structural
information is beneficial because we can quickly compare samples and
characterize any changes in behaviour following polymer grafting, for
example. The Viscotek GPC with triple detection uses an easy-to-read
Mark-Houwink-Sakurada plot to visualize changes in molecular weight and
intrinsic viscosity against a reference sample. This is a real time
saver!" explained Mr Cornelis
"Additionally,"
he continued. "By using multiple-detection GPC to characterize new
polymer candidates we have been able to pre-select only the most
interesting for further study. This has allowed us to reduce the number
of more expensive and time consuming NMR investigations."
Established in 1943 specifically to explore and develop the potential of silicones, Dow
Corning is a global leader in silicones and silicon-based technology
and innovation. The company now offers more than 7,000 products and
services.
Viscotek
instruments apply a combination of refractive index (RI), viscosity,
light scattering and ultra-violet (UV) detection following GPC sample
separation. With the detectors connected in series, the entire
measurement sequence uses a single, un-split volume of sample to deliver
high accuracy results.
For further information about multi-detection GPC visit:
www.malvern.com/viscotek For details of Dow Corning's analytical services go to
http://bit.ly/DowCornMal
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