Synthesis and polymerization of N,N-diallyl morpholinium bromide

N,N-diallyl morpholinium bromide has been synthesized in high yields (96%) by stepwise condensation of morpholine with allyl chloride and allyl bromid e. Polymerizability of the quaternary ammonium salt has been studied using various solvents and radical initiators such as K2S2O8 and t-butyl hydroper oxide. High yields of polymers have been obtained by precipitation polymeri zation in il-butanol with t-butyl hydroperoxide as radical initiator. This method gives low molecular weight polymers, whereas polymers with moderate molecular weights have been obtained in concentrated aqueous solutions. Cop olymerization of the monomer with sulfur dioxide has also been studied. The structures of the monomer and polymers have been elucidated by elemental m icroanalysis, NMR and FT-IR spectroscopy. (C) 2000 Elsevier Science Ltd. Al l rights reserved.