1·Polylactic acid (PLA) is a linear aliphatic polyester produced by poly-condensation of naturally produced lactic acid or by the catalytic ring opening of the lactide group.
聚乳酸(PLA)是一种线性脂肪族聚酯的聚乳酸中自然产生的或由丙交酯开环缩合催化剂组产生。
2·This technology can not only reduce the cost of producing lactide , but also solve the pollution problems from kitchen garbage.
本工艺不但可降低丙交酯的生产成本，而且解决了厨房垃圾的环境污染问题。
3·Polylactic acid synthesis in two major ways:direct polymerization and lactate lactide ring-opening polymerization.
聚乳酸的合成方法主要有两种：乳酸直接聚合和丙交酯开环聚合。
4·The effects of the synthesis conditions such as monomer(lactide) purity, catalyst(stannous octoate) concentration, vacuum level, reaction time and temperature, were discussed.
探讨了单体丙交酯纯度、催化剂辛酸亚锡用量、反应时间、反应温度及真空度对聚合物相对分子质量的影响。
1·The invention discloses a method for continuously rectifying and purifying the lactide with high yield rate, which belongs to the field of chemical and industrial rectification and purification.
本发明公开了一种高收率连续化精馏提纯丙交酯的方法，属于化工精馏提纯领域。