Techniques & Tools Sample Preparation, Spectroscopy, Technology, Data Analysis

GPC Characterization of Nylon using Formic Acid for Reduced Cost per Analysis

GPC/SEC can be used to characterize commodity or bulk manufactured polymers. Here we describe how the use of formic acid instead of hexafluoroisopropanol (HFIP) as the dissolution solvent and/or mobile phase can lead to improvements in both cost per analysis and health and safety.

11/14/2014

sponsored by Malvern Panalytical

Gel permeation chromatography (GPC) or, equivalently, size-exclusion chromatography (SEC) is a widely used technique to characterize a wide variety of macromolecules, including, but not limited to commodity or bulk manufactured polymers. This technique can be used to measure the molecular weight moments, molecular weight distribution, the intrinsic viscosity, and/or hydrodynamic size of these macromolecules. Figure 1 shows a complete setup for a GPC system.

Figure1: Malvern Viscotek TDA Triple Detection GPC System

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