Synthetic Polymers: Maximizing Absolute Molecular Weight Measurements Accuracy with Malvern’s OMNISEC System
7 September 2015
Manufactures are able to control polymer production and quality by understanding the physical properties and behaviours such as molecular weight and molecular weight distribution, molecular size and structure. GPC/SEC (gel-permeation or size-exclusion chromatography) is the most commonly used tool for assessing these parameters. Malvern’s OMNISEC system is a completely new multi-detector GPC system that combines light scattering, refractive index (RI), ultraviolet (UV) and intrinsic viscosity (IV) detectors to generate a large amount of information about a sample simultaneously. In this application note, the molecular weight, molecular weight distribution and size of three common polymers are measured using the OMNISEC system.