Determination of the adsorption model of alcohols on the sulfonic copolymer by a gas chromatography method

Determination of the number of adsorption sites on the sulfonated divinylbenzene-styrene copolymer for alcohols (methanol, ethanol and n-propanol, n-butanol,) was performed by the copolymer saturation of alcohol vapour, the removing excess of alcohol from the copolymer by blowing the inert gas through the copolymer bed and the desorption of the adsorbed alcohol at the programmed increase of temperature. The adsorption measurements were performed on the sulfonated ion exchange resin (Amberlyst 15) with different acid group concentration, which means, with the varying number of adsorption sites. The adsorption model where one sulfonic group can adsorb one molecule of alcohol was proposed.