抄録
The hydration volume around dextran molecules was examined with high and low molecular weight dextrans which were dissolved in tap water and two kinds of water treated with ultra-infrared ray radiating ceramics. The partial specific volumes for the dextran in the ceramics-treated water were higher than that in tap water. The evaporation rates for the ceramics treated water were also higher than that of tap water. The results suggested that the hydration volume around dextran molecules increased because the cluster size of water decreased due to the treatment of the ceramics.
