Izlaganje sa skupa

The Adsorption of Macromolecules on Solid/Liquid Interfaces

Erwin Killmann ; Institut fur Technische Chemie Lehrstuhl fur Makromolekulare Stoffe der Technischen Universitat Munchen

Sažetak

The main problem in the investigations of polymer adsorption
is clearing up the structu,re of the adsorbed layer, and the conformation
of the adsorbed macromolecule. In order to get direct informations
of the adsorbed macromolecule, calorimetric, ellipsometric
and ir-spectrometric measurements are used. The structure of the
polymer layer of the investigated polymer-solvent-adsorbens system
is characterized by the adsorbed amount, the number of adhesive
segments, the adsorption enthalpy and by the thickness and the
concentration of the adsorbed layer. All this parameters are
dependent on the structure of the macromolecule in solution, the
degree of coverage of the adsorbent surface, the enthalpy balance
and the surface density of the adhesive sites on the adsorbens.
The reversibility of the adsorption is influenced by the conformation
of the adsorbed macromolecule and by the molecular
weight.

Ključne riječi

Hrčak ID:

196439

URI

https://hrcak.srce.hr/196439

Datum izdavanja:

22.12.1976.

Posjeta: 682 *