抄録
A novel polyhydroxy polymer, o-(2, 3-dihydroxypropyl) cellulose (DHPC) was synthesized by reaction of cellulose with 2, 3-epoxy-1-propanol (glycidol). The reaction was carried out in both homogeneous and heterogeneous media, which resulted in two types of DHPCs, coded DH and HDH, respectively. They were compared with each other with respect to structural and physicochemical properties, such as relation between molar substitution-degree of substitution, substituent distribution within anhydroglucose unit, water solubility, aqueous solution viscosity, surface activation effect and thermal and dielectric properties of cyanoethyl DHPCs. Significant differences between the two types of DHPCs were observed in all these properties, which were discussed in terms of the difference in the substituent distribution along the cellulose chain.
