Wyatt Technology

Essential Polymer Characterization with MALS and FFF


Presented Live: January 12, 2016

Characterization techniques based on multi-angle light scattering with chromatography (SEC-MALS) or field-flow fractionation (FFF-MALS) address many of the key analytical challenges in the modern polymer laboratory. This seminar will review light scattering technology, instrumentation and applications to polymer research. Select examples will illustrate how a complete light scattering solution based on SEC-MALS facilitates rapid and effective characterization of a wide variety of polymers, including polyacrylamides, acrylic copolymers, nylons, styrenes and more.

Recent advances in commercial applications of high molecular weight and/or branched polymers pose a particular challenge to analytical systems that were designed for simpler polymers. Case studies will be presented to illustrate failures of single-detector chromatography or SEC-MALS, wherein the addition of MALS to FFF made proper analysis possible. The supplemental roles of Dynamic Light Scattering (DLS) and Viscometry will also be explored.





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Wyatt Technology is the recognized leader in light scattering instrumentation and software for determining the absolute molar mass, size, charge and interactions of macromolecules and nanoparticles in solution.

Wyatt's line of multi-angle static light scattering products couple to size exclusion chromatography (SEC-MALS), field-flow fractionation (FFF-MALS), and stop-flow composition-gradient systems (CG-MALS). Our dynamic light scattering (DLS) products operate in traditional cuvette as well as on-line and automated, high-throughput modes. We also offer unique instruments for electrophoretic light scattering (MP-PALS), differential refractometry, and differential viscosity.

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