CATIONIC POLYMERIZATION OF HYDROCARBON MONOMERS INDUCED BY COMPLEXES OF ACYL HALIDES WITH LEWIS-ACIDS .9. PECULIARITIES OF THE MECHANISM OFISOBUTYLENE POLYMERIZATION INITIATED BY THE MECOBR-CENTER-DOT-ALBR3 COMPLEX
Vb. Murachev et al., CATIONIC POLYMERIZATION OF HYDROCARBON MONOMERS INDUCED BY COMPLEXES OF ACYL HALIDES WITH LEWIS-ACIDS .9. PECULIARITIES OF THE MECHANISM OFISOBUTYLENE POLYMERIZATION INITIATED BY THE MECOBR-CENTER-DOT-ALBR3 COMPLEX, Russian chemical bulletin, 46(6), 1997, pp. 1099-1103
Polymerization of isobutylene in n-hexane at -78 degrees C initiated b
y MeCOBr . AlBr3 was studied. The results obtained were compared with
the corresponding data for RCOX . 2AIBr(3) complexes (R = Me or Ph, X
= Cl or Br). The main peculiarities of the polymerization mechanism un
der the action of MeCOBr . AlBr3 were established. The rate constants
of proton elimination and of chain termination and chain growth were d
etermined experimentally.