The ring-opening polymerization mechanism of lactide in the presence of hydroxyl compounds was studied by using ferric ethoxide and ferric n-butoxide as catalysts respectively.

这结果表明在含羟基化物的丙交酯/醇铁体系中,羟基化物作为共引发剂参与了丙交酯的开环。

Lactide is the midbody for the preparation of poly(lactic acid), the ratio of lactic acid to lactide is low and hamper the extensive application of PLA.

丙交酯是由乳酸乳酸的中间体,其产率偏低是约乳酸大规模应用的关键。