The blend film of silk fibroin(SF) and poly(ethylene glycol)400(PEG400)with a blend ratio of 2/1(wt/wt) was prepared simply by dropping a little PEG400 into the
<sup>13</sup>C-NMR <sup>1</sup>H-decoupled spectra of styrene polymers were assigned by comparison with modelcompounds, then used in measurements of number aver
The copolymerization of 2-hydroxyethyl acrylate (HEA, M<sub>1</sub>) and methylmethacrylate (MMA, M<sub>2</sub>) in cyclohexanone was studied. The multiple experime