Cationic polymerization of 3-azidomethyl-3-methyloxetane in the presence of the boron fluoride etherate—ethylene glycol system

2010 ◽  
Vol 52 (3-4) ◽  
pp. 144-150 ◽  
Author(s):  
A. E. Tarasov ◽  
Ya. I. Estrin ◽  
O. M. Ol’khova ◽  
V. P. Lodygina ◽  
E. R. Badamshina
Keyword(s):  
Ethylene Glycol ◽  
Cationic Polymerization ◽  
Boron Fluoride

CATIONIC POLYMERIZATION OF ETHYLENE OXIDE: IV. THE PROPAGATION REACTIONS

1960 ◽  
Vol 38 (10) ◽  
pp. 1967-1975 ◽  
Author(s):  
G. T. Merrall ◽  
G. A. Latrémouille ◽  
A. M. Eastham
Keyword(s):  
Molecular Weight ◽  
Ethylene Oxide ◽  
Cationic Polymerization ◽  
Chain Growth ◽  
Low Molecular Weight ◽  
Boron Fluoride

Studies of the boron-fluoride-catalyzed reaction of ethylene oxide with simple alcohols and low molecular weight polyglycols indicate three ways in which chain growth could occur, but only one of these is considered to be important after the initial stages of polymerization. The rate of disappearance of monomer reaches a maximum at a molecular weight of about 400. A mechanism is proposed to account for both polymerization and depolymerization and it is shown how equilibrium between these two reactions could result.

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