<,正,>, In this paper the change of segment ratio, segmental sequence distribution and randonmess B of PET-PTMG block copolymer have been investigated by IR and,13,C-NMR spectra during the polycondensation reaction.
Abstract
In this paper the change of segment ratio, segmental sequence distribution and randonmess B of PET-PTMG block copolymer have been investigated by IR and ,13,C-NMR spectra during the polycondensation reaction.