›› 2023, Vol. 37 ›› Issue (5): 34-39.

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聚丁二酸-己二酸丁二醇酯的合成与表征

黄辰昊1,宋力1,苏婷婷1,王战勇2   

  1. 1. 辽宁石油化工大学
    2. 沈阳农业大学
  • 收稿日期:2023-01-16 修回日期:2023-02-20 出版日期:2023-05-26 发布日期:2023-05-26

Synthesis and characterizations of poly(butylene succinate-co-butylene adipate)

  • Received:2023-01-16 Revised:2023-02-20 Online:2023-05-26 Published:2023-05-26

摘要: 以1,4-丁二醇及不同比例的己二酸、丁二酸为原料,制备一系列聚丁二酸-己二酸丁二醇酯[P(BS-co-BA)]共聚酯,借助衰减全反射傅里叶变换红外光谱仪(ATR-FTIR)、核磁共振仪(1H-NMR)、差示扫描量热仪(DSC)、X射线衍射仪(XRD)以及热重分析仪(TG)等对共聚酯的结构性能进行表征分析。角质酶降解结果表明,在经过16 h后,4种共聚酯降解率均达到80 %以上,2种均聚酯均仅为40 %左右。其中聚酯酶降解速率为P(BS-co-40 % BA)>P(BS-co-60 % BA)>P(BS-co-80 % BA)>P(BS-co-20 % BA)>聚己二酸丁二醇酯(PBA)>聚丁二酸丁二醇酯(PBS)。综合可知P(BS-co-40 % BA)热稳定性相比于PBA更好,降解性能较PBS更好,为最佳共聚酯。

关键词: 共聚酯, 聚丁二酸丁二醇酯, 聚己二酸丁二醇酯, 酶降解

Abstract: In this work, a series of poly(butanediol adipic ester) [P(BS-co-BA)] copolyesters were synthesized by using 1,4-butanediol, adipic acid, and succinic acid as raw materials, and their structures and properties were characterized and analyzed by using attenuated total reflection Fourier-transform infrared spectrometer, nuclear magnetic resonance instrument, differential scanning calorimeter, X-ray diffractometer, and thermogravimetric analyzer. The keratin enzyme degradation results indicated that the four copolyesters reached more than 80 wt% after reacting16 h, but the two homopolyesters only reached about 40 wt%. The degradation rate of polyester enzyme increased by a order of P(BS-co-40 % BA) > P(BS-co-60 % BA) > P(BS-co-80 % BA) > P(BS-co-20 % BA) > poly(butylene adipate) (PBA) > poly(butylene adipate) (PBS). The thermal stability and degradation performance of P(BS-co-40 % BA) were both better than those of pure PBA, indicating that P(BS-co-40 % BA) is an optimal product with the best performance.

Key words: copolyester, poly(butylene succinate), poly(butylene adipate), enzymatic degradation