Figure 2
Splittings of individual resonances of13C NMR spectra of block copolymer PHB- b -PHHx (A), random copolymer P(HB- co -HHx); (B) blend of PHB and PHHx(C); B and X refer to 3HB and 3HHx monomers, respectively. The meaning of the numbering scheme can be referred to Figure 1. Chemical shifts are in ppm and tetramethylsilane (TMS) was employed as an internal chemical shift standard.