The Polymer Analysis Laboratory provides advanced equipment for characterization of macromolecules, supramolecular assemblies, colloids, complex fluids, and related materials
Distribution of polymer molecular weight and size can be measured qualitatively or absolutely on one of three Agilent-Wyatt gel permeation chromatography (GPC) or a Wyatt Asymmetric Flow Field Flow Fractionation (AFFFF) systems equipped with MultiAngle Light Scattering (MALS), concentration, and viscosity detectors. The field flow fractionation system is especially powerful for large polymers and colloidal particles.
Dynamic light scattering can be performed on a state-of-the-art laser light scattering systems built to the specifications of the department in LSU’s Scientific Instrumentation Shops, on a Malvern ZetaSizer (which can also measure zeta potential) or on-line in flow-through mode using a Wyatt QELS.
PAL’s thermal analysis facility (TA Systems) includes Differential Scanning Calorimetry (DSC, three instruments), Thermo Gravimetric Analysis (TGA), dielectric thermal analysis (DEA), and Dynamic Mechanical Analysis (DMA)
PAL’s optical microscopy facility is equipped with Olympus and Leitz optical microscopes for polarized, transmission, and epi-fluorescence illumination. Film and video cameras interface to two separate image processing systems.
Other instrumentation includes a NIMA Langmuir Blodget trough, equipped for surface pressure measurement and production of thin films, a Beckman Coulter LS-200 Laser Diffraction Particle Size Analyzer, an Agilent 8453 UV-Vis Spectrophotometer, and a Perkin Elmer LS50B Luminescence Spectrometer
The facility is supported by a full-time Ph.D.-level staff employee