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A novel copolymer of chitosan-g-poly(p-dioxanone) (CGP) was synthesized in bulk by ring-opening polymerization of p-dioxanone (PDO) initiated by the hydroxyl group or amino group of chitosan using SnOct 2 as catalyst. The chemical structure was determined by 1 H NMR. It was found that the feed ratio of chitosan to PDO had a great effect on the degree of polymerization (DP) and the...
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