Adsorption of cis‐1,4‐polyisoprene at solid/liquid interface

The adsorption of cis-1,4-polyisoprene on alumina and silica gel was studied at three temperatures. The solvents used were toluene, chlorobenzene and various mixtures of both. The adsorption from the mixtures of the solvents was much less than from either of the pure solvents. The amount of adsorption was an inverse function of temperature. The thermodynamic quantities of adsorption at infinite dilution were obtained by extrapolation and at isosteric conditions. They were computed and discussed for all the systems. Die Adsorption von Poly(cis-1,4-isopren) an Aluminiumoxid- und Siliziumdioxid-Oberflachen wurde bei verschiedenen Temperaturen untersucht. Die Adsorptionsausbeute verhielt sich umgekehrt proportional zur Temperatur und war aus Toluol- und Chlorbenzol-Losungen groser als aus Mischungen von Toluol und Chlorbenzol. Die thermodynamischen Adsorptionsparameter bei unendlicher Verdunnung und isosteren Bedingungen wurden durch Extrapolation ermittelt und fur alle untersuchten Systeme diskutiert.