Application Note: Understanding and Minimizing Polycaprolactone Degradation During Processing Using Multi-Detector GPC and Rheology
18 October 2017

Polycaprolactone (PCL) is a synthetic polymer that has recently received increasing attention thanks to its biodegradability. Being biodegradable, PCL is at a high risk of degradation during processes such as extrusion for molding, particularly at high temperatures. In this application note, a commercially available sample of PCL was extruded alone and in the presence of CO2. Multi-detector GPC measurements were made of the virgin sample before and after extrusion, while rotational rheometry was used to study the polymer’s melt viscosity.