This article introduces the analysis method of polyesters. The molecular weight distributions of two different samples of polyester were accurately analyzed using gel permeation chromatography with light scattering detection.
The document details a method for accurately determining the molecular weight distributions of two different polyester samples. The analysis was performed using gel permeation chromatography (GPC) combined with differential refractive index and dual angle light scattering detection.
The study utilized an Agilent PL-GPC 50 Plus integrated GPC system equipped with Agilent PLgel 5 um MIXED-C columns and a PL-LS 15/90 dual angle light scattering detector. The results demonstrated that the two samples had significantly different molecular weight distributions, highlighting the system's capability to resolve high molecular weight polymers.
It is an integrated GPC system designed for the accurate determination of polymer molecular weights.
The system is designed for operation from ambient to 50 °C.
The analysis uses a flow rate of 1 mL/min.