Polymerization of propylene oxide by activated monomer mechanism. Suppression of macrocyclics formation

1 December 1986

journal article
research article
Published by Wiley in Makromolekulare Chemie. Macromolecular Symposia

Vol. 6 (1) , 201-206
https://doi.org/10.1002/masy.19860060118

Abstract

Evidence for the activated monomer (AM) mechanism operating in the polymerization of propylene oxide (PO) initiated with HBF₄ is presented. The contribution of AM route of propagation is the highest and formation of cyclic oligomers mostly suppressed when monomer concentration is low enough. This was achieved by slowly adding PO to the reaction mixture, as previously proposed on the basis of kinetic considerations.

Keywords

This publication has 3 references indexed in Scilit:

Cationic Ring-Opening Polymerization
Published by Springer Nature ,1985
Twelve-membered polyether rings. Cyclic tetramers of some olefin oxides
The Journal of Organic Chemistry, 1968
Quantitative Comparisons of Weak Organic Bases
Published by Wiley ,1963