New soluble polystyrene crown ether structure as phase transfer catalyst was prepared by the reaction of styrene-4-sulfonyl chloride with 4-amino, benzo-9-crown-3- and then resulting monomer N-(benzo-9-crown-3-4′-yl)styrene-4-sulfonamide was polymerised with benzoyl peroxide in THF solvent under nitrogen and reflux conditions. The monomer and the polymer were identified by spectroscopic methods and also molecular weight of the polymer was determined by GPC and rate of formation of the polymer-bound lithium crown ether from the soluble polymer and aqueous LiOH was investigated.
