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Copolymerization of L-lactide and ε-caprolactone initiated by tin (II) octoate (Sn(Oct)2) was carried out in supercritical chlorodifluoromethane (R22) with varying reaction conditions (time and temperature) and amounts of monomer and catalyst, under a pressure of 250 bar. The optimum conditions were a reaction time of 10 h and a temperature of 130 °C, which is similar to the temperature used in bulk...
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