The study of the simultaneous grafting of ethyl acrylate with methyl methacrylate onto amylose with Ce(IV) ammonium nitrate as initiator was attempted. Grafting yields obtained using gravimetric and 13C n.m.r. spectroscopic methods were compared and similar results were obtained. A study of the microstructure of the grafted products obtained involving either the quantitative determination of the grafted copolymer composition or the qualitative study of the sequence distribution and the stereochemical configuration of grafted copolymer sequences has been carried out. The ~t-methyl group carbon, the quaternary carbon and the carbonyl group carbon have been found to be sensitive to the relative stereochemical configuration of the chain segments.
Посилання на статтю:
13C n.m.r, study of the graft copolymerization of a mixture of methyl methacrylate with ethyl acrylate on amylose / I. Gofiit, M. Gurruchaga, J. San Roman, M. Valero and G. M. Guzman // Polymer. – 1993. – Vol 34. – P. 512-517.