Chinese Journal of Organic Chemistry ›› 2022, Vol. 42 ›› Issue (9): 2954-2960.DOI: 10.6023/cjoc202204045 Previous Articles     Next Articles

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锌掺杂聚吡咯催化乳酸缩合制备高光纯L-丙交酯

崔旭东, 孟祥坤, 陈颖, 刘永红*(), 俞磊*()   

  1. 扬州大学化学化工学院 江苏扬州 225002
  • 收稿日期:2022-04-18 修回日期:2022-06-07 发布日期:2022-06-22
  • 通讯作者: 刘永红, 俞磊
  • 基金资助:
    江苏省“六大”人才高峰高层次人才(XCL-090); 江苏省自然科学基金(BK20181449); 以及江苏省优势学科资助项目

Preparation of L-Lactide with High Optical Purity via the Zinc-Doped Polypyrrole-Catalyzed Lactic Acid Condensation

Xudong Cui, Xiangkun Meng, Ying Chen, Yonghong Liu(), Lei Yu()   

  1. School of Chemistry and Chemical Engineering, Yangzhou University, Yangzhou, Jiangsu 225002
  • Received:2022-04-18 Revised:2022-06-07 Published:2022-06-22
  • Contact: Yonghong Liu, Lei Yu
  • Supported by:
    Jiangsu Provincial Six Talent Peaks(XCL-090); Natural Science Foundation of Jiangsu Province(BK20181449); Priority Academic Program Development of Jiangsu Higher Education Institutions

As a biodegradable polymer, poly-lactic acid (PLA) has a wide application prospect. At present, high quality PLA is mainly produced via lactide condensation. In the technique, the optical purity of lactide is the key factor affecting the mechanical properties of produced PLA. Thus, developing the synthesis technology of lactide with high optical purity is a challenging subject with good application value. In this work, zinc-doped polypyrrole (Zn@PPy) catalyst was designed and prepared. The material could catalyze the condensation of lactic acid to synthesize lactide with high optical purity. Notably, the material could be reused for many times with the optical purity of the produced lactide over 98%.

Key words: polypyrrole, catalyst, zinc, lactide, poly-lactic acid