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. Phosphazene, Triisobutylaluminum-Promoted Anionic Ring- Opening Polymerization of 1,2-Epoxybutane Initiated by Secondary Carbamates

S. Figure, MALDI-ToF spectra (top: linear mode; bottom: reflectron mode) of a poly(butylene oxide) synthesized with tert-butyl N-allylcarbamate