反应详情

The polymerisation was performed as in Example 1, but the amounts of ingredients were 401.0 g of aqueous lactic acid (82 mole-%), 54.9 g of itaconic acid (9 mole-%), 44.1 g of 1,4-butanediol (9 mole-%) and 0.22 g of tin(II) octoate, and the polymerisation time was 27 hours.