Fig. 8

a 1H NMR spectrum of the chloroform-soluble part of CL-PB2.5 after hydrolytic degradation in chloroform-d and (b) expanded spectrum at 2–4.5 ppm

a 1H NMR spectrum of the chloroform-soluble part of CL-PB2.5 after hydrolytic degradation in chloroform-d and (b) expanded spectrum at 2–4.5 ppm