Abstract
The adsorption behavior and structural features of polystyrene (PS)-polyvinyl pyrollidone di- and tri-block copolymers in various solvent conditions were investigated. Normal forces were measured as a function of the separation distance between the brush-bearing surfaces while the layers were bathed in toluene. Following the friction forces measurements in the good solvent, the solvent was changed to cyclohexane, which was near-theta-solvent for PS brushes at 34.5 °C. Normal force and friction measurements were recorded in the near-theta solvent.
| Original language | English (US) |
|---|---|
| Pages (from-to) | 87-88 |
| Number of pages | 2 |
| Journal | American Chemical Society, Polymer Preprints, Division of Polymer Chemistry |
| Volume | 40 |
| Issue number | 2 |
| State | Published - Aug 1999 |