This paper describes the method of analyzing polybutadiene using gel permeation chromatography
This document details the analysis of polybutadiene using Gel Permeation Chromatography (GPC) to evaluate molecular weight data for quality control in tyre production. It highlights the importance of stable temperature control and solvent degassing for accurate results.
| Mobile phase | Tetrahydrofurane (THF) |
|---|---|
| Flow rate | 1 ml/min |
| Oven Temp | 20 °C |
| UV detector | DAD 254/100 nm, reference 360/100 nm |
| Refractive index detector | HP 1047A |
| Software | Agilent ChemStation + polymer labs GPC software |
The precision of weight average molecular weight (Mw) is less than 1%, and the precision of number average molecular weight (Mn) is less than 2%.
The pump should be able to pump the selected flow rate with a precision of typically less than 0.15 percent.
The oven temperature for the analysis is set to 20 degrees Celsius.
The sample preparation requires 33 mg of sample dissolved in 1 ml of THF.