Characterization of Silicone

Polydimethylsiloxane is the world’s most common silicone. Its applications range from contact lenses and medical devices to elastomers, caulking, lubricating oils and heat resistant tiles. For all of its applications, the weight-average molar mass (and its distribution) is directly associated with the performance of the product. A DAWN® multi-angle light scattering (MALS) detector coupled with a Size Exclusion Chromatograph (SEC) provides the perfect tool for making molecular weight determinations without reference to standards or column calibration.