We investigated the phosphazene base tBuP4 promotion of the ring opening polymerization (ROP) of 1,2-butylene oxide and ethoxyethyl glycidyl ether initiated by secondary amides. Specifically, we synthesized linear polymers and copolymers as well as grafted copolymers. Of particular interest was the range of secondary amides which could be deprotonated by tBuP4 to successfully initiate a polymerization, the presence of transfer or side reactions, and the kinetics of the polymerizations. Though there were significant differences in the polymerization rates, narrowly disperse polymers were obtained in high yield, as confirmed by size exclusion chromatography and matrix assisted laser desorption ionization time of flight mass spectrometry. Similar results were obtained for phosphazene base tBuP4 promoted initiation from copolymers.

Phosphazene-base promoted ring-opening polymerization of 1,2-butylene oxide and ethoxyethyl glycidyl ether initiated by secondary amides

255th National Meeting (2018)

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