The dynamics of a confined polymer melt between strong adsorbing surfaces is considered theoretically. In particular the influence of bridging on the rheological behavior is investigated. It is shown that the bridges are very important for small enough shear velocities. Several regimes of qualitatively different rheological behavior depending on the shear velocity are predicted, one of the intermediate regimes being characterized by a power law decrease of the shear stress as a function of the velocity.
All Science Journal Classification (ASJC) codes
- Organic Chemistry
- Polymers and Plastics
- Inorganic Chemistry
- Materials Chemistry