The separation of polystyrene and the calculation result of molecular weight distribution of styrene butyl methacrylate copolymer using GPC HK-404L, an organic SEC (GPC) column for ultra-rapid analysis, were compared with a conventional device and a semi-micro type device. It was confirmed that the separation and the calculation result of molecular weight distribution are similar. HK-404L can be also used with the conventional device.
Sample : 5µL
Polystyrene
1. Mp: 3,150,000 0.05%
2. Mp: 275,000 0.1%
3. Mp: 19,600 0.1%
4. Mp: 1,270 0.1%
Sample : 5µL
Styrene butyl methacrylate copolymer 0.1%(w/v)
*Peak heights are adjusted to make it easy to compare them.
| Semi-micro type | Conventional type | |
|---|---|---|
| Injector | Rheodyne 8125 | Rheodyne 7725i |
| Tubing | 0.1mm I.D. | 0.25mm I.D. |
| RI cell volume | 2.5μL | 8μL |
Columns : Shodex GPC HK-404L (4.6mmI.D. x 150mm) x 2 Eluent : THF Flow rate : 1.0mL/min Detector : RI Column temp. : 40°C
