| Abstract: | 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. |
