Citation: . SYNTHESIS OF NOVEL HYDROPHILIC BIODEGRADABLE POLYESTER WITH FUNCTIONALIZED SIDE CHAIN GROUPS*[J]. Chinese Journal of Polymer Science, ;2001, 19(5): 509-516. shu

SYNTHESIS OF NOVEL HYDROPHILIC BIODEGRADABLE POLYESTER WITH FUNCTIONALIZED SIDE CHAIN GROUPS*

Received Date: 11 June 2001
Revised Date: 21 June 2001

A substituted glycolide, 3-bencyloxymethyl-1, 4-dioxane-2, 5-dione, was synthesized. It is a suitable precursor forthe preparation of a new hydrophilic biodegradable poly(α-hydroxy acid). The polymerizations were carried out in bulk inthe presence of Sn(Oct)2 at 120-140℃. The resulting polymers were subjected to hydrogenolysis with a Pd/C catalyst in amixed solvent to remove the protecting benzyl groups. A novel poly(α-hydroxy acid) with pendant hydroxy groups wasobtained. The hydrophilicity of the resulting polymer was evaluated preliminarily.
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