立构复合聚乳酸的制备专利研究进展  

Patent Research Progress on the Preparation of Stereocomplex Polylactic Acid

作　　者：余晓兰[1] 杨晓娟[1] YU Xiaolan;YANG Xiaojuan(Patent Examination Cooperation Beijing Center of the Patent Office,CNIPA,Beijing 100160,China)

机构地区：[1]国家知识产权局专利局专利审查协作北京中心,北京100160

出　　处：《纺织科技进展》2024年第10期17-19,共3页Progress in Textile Science & Technology

摘　　要：立构复合聚乳酸是其对映异构体左旋聚乳酸(PLLA)链段和右旋聚乳酸(PDLA)链段形成的具有螺旋互补结构的络合物,具有可降解、熔点高、耐水解性强、力学性能优异等特点。对专利申请中涉及制备立构复合聚乳酸的方法进行分类总结,统计各制备立构复合聚乳酸的制备专利申请量随申请年的变化,阐述目前制备立构复合聚乳酸研究的重点及未来研发方向。Stereocomplex polylactic acid is a complex with helical complementary structure formed by its enantiomer poly(L-lactic acid)(PLLA)segment and poly(D-lactic acid)(PDLA)segment.It has the features of degradability,high melting point,strong hydrolysis resistance and excellent mechanical properties.The methods of preparing stereocomplex polylactic acid in patent applications were classified and summarized.The number of patent applications for each method of preparing stereocomplex polylactic acid was counted with the change of the application year,while the focus of current research on the preparation of stereocomplex polylactic acid and the direction of future research were expounded.

关 键 词：立构复合 聚乳酸 制备方法 专利文献 

分 类 号：TQ323.4[化学工程—合成树脂塑料工业]