In suspension vinyl polymerization of water immiscible monomers, the polymer yield is very low when water soluble initiator is used, because the free radicals generated in the aqueous phase do not get the opportunity to initiate polymerization. However, in conjunction with a phase transfer catalyst, the radical precursor is transferred into the organic phase, where the generated free radicals cause vinyl polymerization, just as an organic soluble initiator does.
Посилання на статтю:
Use of phase transfer catalysts to aid initiation in suspension vinyl polymerization / R. Mathur, S. Mathur, N. Kanoongo, C. K. Narang and N. K. Mathur // Polymer. – 1992. – Vol 33. – P. 217-218.