N. Erolan et al., THE EFFECT OF ULTRASOUND IN ETHYL-METHACRYLATE POLYMERIZATION AND DEPOLYMERIZATION REACTIONS, Die Angewandte makromolekulare Chemie, 226, 1995, pp. 53-57
The effect of ultrasound in ethyl methacrylate polymerization and depo
lymerization and the chain termination mechanism for ethyl methacrylat
e have been studied. Polymerization conversion at 60 degrees C did not
depend on energy (80 W) and frequency (35 kHz) of ultrasound applied.
In ultrasound depolymerization studies at 20 degrees C the governing
termination mechanism was found to be disproportionation and the lower
limiting molecular weight was M(n) = 500000.