The physical state of water, absorbed in silk fibroin (SF)/S-carboxymethyl kerateine (SCMK) blend films, was studied by differential scanning calorimetry (DSC) to investigate the change of internal structures of the blend films. The amount of non-freezing bound water in the blend film was decreased with the addition of SCMK because of the change in the secondary structure of SF from random coil form to bstructure form. This transition could be also monitored by thermal analysis using DSC. The maximum change of the secondary structure was observed at a blend ratio of 50/50 (wt/wt).
Посилання на статтю:
Polymer Communication DSC studies on bound water in silk fibroin/S-carboxymethyl kerateine blend films / K.Y. Lee, W.S. Ha // Polymer. – 1999. – N 40. – P. 4131–4134.