SYNTHESIS, CHARACTERIZATION AND INITIATOR PROPERTIES OF AN AMPHIPHILIC DIPEROXIDE

An amphiphilic diperoxide, palmitoyl (3-carboxy propionyl) sebacoyl di peroxide (PSD), was synthesised by the successive condensations of seb acoyl chloride with peroxypalmitic acid and monoperoxysuccinic acid in a pyridine medium and further characterised by i.r., H-1 n.m.r., MS a s well as elemental analysis. The amphiphilic character of the diperox ide as surfactant was confirmed by the fact that the average area occu pied by per PSD molecule at the air-water interface was found to be 0. 31 nm(2) by the LB film method. The activation energy of the diperoxid e for decomposition was determined by d.s.c. and calculated to be 142. 7 kJ/mol. (C) 1998 Elsevier Science Ltd. All rights reserved.