This note describes the analysis of three samples of polyethylene with the Agilent PL-GPC 220 instrument by gel permeation chromatography (GPC) and viscometry.
This document details the analysis of three polyethylene samples using gel permeation chromatography (GPC) and viscometry. The study utilizes the Agilent PL-GPC 220 instrument with Agilent PLgel 10 MIXED-B columns and trichlorobenzene (TCB) as the eluent. Data is processed using Agilent's Cirrus Multi Detector Software and the Universal Calibration approach to determine molecular weight distributions and branching characteristics.
| Eluent | TCB + 0.015% BHT |
|---|---|
| Flow rate | 1.0 mL/min |
| Injection volume | 200 pL |
| Temperature | 160 °C |
| Detector | PL-GPC 220 (RI) + Viscometer |
The data is analyzed using Agilent's Cirrus Multi Detector software and the Universal Calibration approach.
The branching ratio g is defined as the ratio of the polymer's intrinsic viscosity to the linear intrinsic viscosity.