The application of heteronuclear chemical shift correlation (HETCOR) NMR allowed us to correlate the homodecoupled methine proton with the methine carbon signals of poly(rac-lactide) and poly(meso-lactide), and made it possible to perform a detailed analysis of 1H NMR spectra (homodecoupled) and to ascribe the signals to configurational pentads. The assumption made by Chisholm and coworkers [Chisholm et al., Chem. Comm. 1997, p. 1999] that the previous assignment of methine carbon signals in 13C NMR spectra was incorrect appeared to be wrong.
Посилання на статтю:
Polymer Communication HETCOR NMR study of poly(rac-lactide) and poly(meso-lactide) / J.E. Kasperczyk // Polymer. – 1999. – N 40. – P. 5455–5458.