SYNTHESIS AND POLYMERIZATION OF A ZWITTERIONIC BETAINE SURFACTANT - ACRYLOYLUNDECYLDIMETHYLAMMONIO ACETATE

A novel polymerizable zwitterionic betaine surfactant of acryloyl-undecyldimethylammonio acetate (AUDMAA) was synthesized using acryloyl chloride, 11-bromoundecanol, and glycine. Its critical micelle concentration is 9.42 x 10(-3) mol/L at 24 degrees C. The polymerization followed first-order kinetics with respect to [AUDMAA] and one-half order with respect to [K2S2O8]. The activation energy for the micellar polymerization of AUDMAA was found to be only 50.2 kJ/mol. The ($) over bar M(w) of poly(AUDMAA) ranged from about 3.0 to 5.0 x 10(4) and its MWD was rather narrow (1.8 < ($) over bar M(w)/($) over bar M(n) < 2.0).