STUDIES OF ADSORPTION OF POLYACRYLONITRILE AND POLYACRYLATES AT SOLID-LIQUID INTERFACE

The adsorption of poly(acrylonitrile), poly(methyl acrylate), poly(eth yl acrylate) and poly(butyl acrylate) was studied at different tempera tures from N,N'-dimethyl formamide solution on various solid surfaces, i.e. silica gel, alumina and calcium carbonate. The thermodynamic qua ntities for adsorption processes were computed by using a) infinite di lution and b) surface coverage approaches. Both procedures tend to giv e similar conclusions. These reveal the importance of polymer-adsorben t interactions besides many other properties including solvent power.