Monoepoxy polymerization initiated by BF3-amine complexes in bulk. III. Influence of γ-butyrolactone on polymer formation

摘要: The influence of γ-butyrolactone (γ-BL), used as solvent BF3-amine complexes, on the polymerization monoepoxides was studied. Different intermediate reaction products PGE initiated by BF3-4-methoxyaniline (BF3-4MA) previously solubilized in γ-BL (55% weight), were separated and analyzed 1H-NMR. It is shown that there opening both epoxy γ-BL. latter does not homopolymerize, but copolymerizes well with groups. use a large quantity leads to decreasing molar mass formed polymer. kinetic study allowed propose mechanism cationic complex presence © 1994 John Wiley & Sons, Inc.