This application note describes the methods used to analyze poly(styrene/butadiene) copolymers by conventional gel permeation chromatography on the Agilent PL-GPC 50.
The document details an analytical procedure for characterizing poly(styrene/butadiene) (SBR) block copolymers. It explains that these thermoplastic elastomers mimic natural rubber properties, where hard polystyrene chains are surrounded by a network of rubbery polybutadiene.
| Columns | 2 x Agilent PLgel 5 ym MIXED-C, 7.5 x 300 mm |
|---|---|
| Eluent | Tetrahydrofuran (250 ppm BHT) |
| Flow Rate | 1.0 mL/min |
| Sample Concentration | 2.0 mg/mL |
| Injection Volume | 100 pL |
| Temperature | 40°C |
The analysis assesses the products of complex synthesis reactions to gain mechanistic insights into polymerization processes.
The sample concentration must be 2.0 mg/mL.
The flow rate is set to 1.0 mL/min.