【摘要】 目的考察聚乳酸(PLA)的合成条件和影响因素,为实现PLA制备的工业化奠定基础。方法考查单体的制备与纯化、溶剂残余量、聚合方式、引发剂用量、聚合时间、聚合温度等因素对聚合的影响。结果及结论高纯度的单体、高真空的封管聚合,是获得高分子量PLA关键因素。更多还原

【Abstract】 OBJECTIVE To lay a foundation for the industrialized manufacture of polylactide(PLA).METHODS Various influencing factors in the preparation of PLA were studied,such as the purity of monomer,the polymerization temperature,and the quantity of the initiator.RESULTS and CONCLUSIONS High purity of monomer,high vacuum are the key factor of high molecular weight PLA.更多还原