?-1,4-GLUCAN-GRAFTED CELLULOSE

摘要

A graft polymer in which an a-1,4-glucan side chain is bonded to the main chain of cellulose: wherein the terminal carbon atom at the 1-position of the a-1,4-glucan side chain is covalently bonded via an -NH- group to the carbon atom at the 6-position in at least one glucose residue of the cellulose main chain; two hydrogen groups are bonded to the preceding carbon atom at the 1-position or one oxygen atom is bonded thereto; the preceding cellulose main chain has a degree of polymerization of 25 or higher; and the preceding a-1,4-glucan side chain has a degree of polymerization of 25 or higher.