Abstract
Thermal field-flow fractionation has been applied to 29 linear and branched polystyrene samples dissolved in ethylbenzene. The samples varied widely in chain length and branching configuration. The dependence of retention on the molecular weight and the ordinary diffusion coefficient was established. It is shown from these results that the thermal diffusion coefficient is essentially constant, independent of both molecular weight and the form of branching. This result is consistent with the theoretical conclusions of Brochard and de Gennes.
| Original language | English |
|---|---|
| Pages (from-to) | 1561-1563 |
| Number of pages | 3 |
| Journal | Macromolecules |
| Volume | 20 |
| Issue number | 7 |
| DOIs | |
| State | Published - 1 Jul 1987 |