Adsorption and aggregation of 2-hydroxyl-propanediyl-α,ω-bis(dimethyldodecyl ammonium bromide) in aqueous solution: Effect of intermolecular hydrogen-bonding

► The hydroxyl substituted surfactant forms dimers by intermolecular hydrogen bonding. ► Intermolecular hydrogen bonding enhances adsorption and association of the surfactant. ► Intermolecular hydrogen bonding interaction promotes growth of the micelles. ► Hydrogen bonding leads to dissociation of more counterions on the aggregate surfaces.