SURFACTANT ADSORPTION AND WATER DESORPTION ON THIN CELLULOSE FILMS MONITORED BY IN-SITU ATR FTIR SPECTROSCOPY

The adsorption of surfactants and formation of surface layers play an important role in many industrial processes, e.g. the production and f inishing of fibres or surface treatment of polymers. This work deals w ith investigations into the formation of layers of surface-active subs tances on the cellulose surface by A TR-FTIR spectroscopy. These resul ts were supported by quantitative adsorption measurements, i.e. determ ination of the difference between the starting and the residual concen tration. It was shown that the formation of multilayers of cationic su bstances on cellulose is related to partial dehydration of the surface region.