Selectivity of a polystyrenebenzyltrimethylammonium-type anion-exchange resin for alkanesulfonates

Uptake of Cycloalkanes and Bicyclic Aromatic Compounds by Ion-Exchange Resins from Aqueous Solutions

“…It has been pointed out that free electrons at the carbon-carbon double bond interact with the aromatic π systems of the resin matrix. 5 The present results support this π-π interaction.…”

“…Some data have been reported that support a hydrophobic interaction. 3,5,6,11,12 Of these, selective coefficients of amino acids toward a strong cation exchanger 11 and those of chlorophenols toward a strong anion exchanger 12 have been related to Kow. Table 2 and Fig.…”

“…Some workers have reported that aromatic species interact more strongly with the resin matrix than aliphatic ions containing an identical number of carbon atoms. 4,5 On the contrary, chromatographic studies suggest that the π-electron interaction with the resin matrix is less important than the hydrophobic interaction. 6 This study was undertaken to compare the affinity of cycloalkanes for resins with that of alkanes, to provide insight into the uptake mechanism, and to elucidate whether π-π interactions between aromatic solutes and the resin matrix contribute to solute uptake by the resin.…”

Uptake of Alkanes and Alcohols by Ion-Exchange Resins in Aqueous Solution

“…6 Such hydrophobic interaction has been pointed out by many other workers. [7][8][9][10] The importance of hydrophobic interaction in aqueous solution between ion exchangers and solutes with alkyl chain has been thus well realized. This is, however, derived based on using solutes that are more or less polar by nature such as organic acids and anions or aliphatic alcohols.…”

Hydrophobicity of polymer based anion-exchange columns for ion chromatography

“…The role of hydrophobic interactions in adsorption of long chain alkanols, alkanoic and alkanesulfonic acids on polystyrene-divinylbenzene (PS-DVB) anion-exchange resins was systematically investigated by Small et al [11], Janauer et al [24,25], Gregory and Semmens [26,27], Sargent and Rieman [28] and Sanemasa [29,30]. A strong correlation between distribution coefficients (logK D ) and a number of carbon atoms (n C ) for these sorbates was established, while hydrophobic interactions were found to be dominant for sorbates with n C > 3.…”