Abstract
Novel oligomeric prepolymers were synthesized by acid-catalyzed condensation of glycerol with iminodiacetic, azelaic, or succinic acid. The prepolymers were obtained, on average, in 62% yield and were characterized by 13C NMR, 1H NMR, matrix-assisted laser desorption ionization-time of flight-mass spectrometry, and gel permeation chromatography. The synthesized oligomers had an average M.W. of 1543 Daltons (average polydispersity (PD)=1.34, average degree of polymerization (DOP)=5.5). Hyperbranching was evident in the oligomers produced when using azelaic acid and succinic acid as co-monomers with glycerol, whereas the reaction between iminodiacetic acid and glycerol resulted in linear products bearing cyclic urethane structures.
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Wyatt, V.T., Nuñez, A., Foglia, T.A. et al. Synthesis of hyperbranched P poly(glycerol-diacid) oligomers. J Amer Oil Chem Soc 83, 1033–1039 (2006). https://doi.org/10.1007/s11746-006-5159-y
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DOI: https://doi.org/10.1007/s11746-006-5159-y