共 4 条
- [2] 利用乳酸直接缩聚制备无毒聚乳酸的方法[P]. 雷自强,白雁斌. 中国专利:CN1702091,
- [3] Synthesis of polylactic acid by direct polycondensation under vacuum without catalysts, solvents and initiators[J] . Feerzet Achmad,Kenji Yamane,Shi Quan,Takao Kokugan.Chemical Engineering Journal . 2009 (1)
- [4] Aliphatic polyesters and their copolymers synthesized through direct condensation polymerization[J] . M. Ajioka,H. Suizu,C. Higuchi,T. Kashima.Polymer Degradation and Stability . 1998 (1)