Organic base catalyzed oligomerization of propylene carbonate and bisphenol A: Unexpected polyether diol formation

A useful oligomer of polyether diol was obtained from the oligomerization of propylene carbonate and bisphenol A initiated by organic base under mild condition. The new oligomers were characterized by MALDI-TOF MS, IR, H-1 NMR, C-13 NMR spectra, TG-DTA analysis, and viscosity determination. (c) 2007 Published by Elsevier B.V.