Figure S1 a) IR spectra of the reaction distillates from three
systems show same IR profiles with that of the standard ethanol. IR
spectra of b) HBPSi-NH2, c) HBPSi-EP and d) HBPSi-V show
significant -OH absorption compared with PDO (B2 monomer) and specific
characteristic peaks compared with their B3 monomers, respectively.