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Fully biodegradable poly(l-lactide)/poly(triethylene glycol adipate) blends with different phase behaviors and significantly increased crystallization rate

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Abstract

Fully biodegradable poly(l-lactide)/poly(triethylene glycol adipate) blends with different phase behaviors and significantly increased crystallization rate were prepared for the first time in this research. Depending on PTGA content, PLLA/PTGA blends showed different phase behaviors. PLLA was completely miscible with PTGA when PTGA content was not higher than 15 mass%, while PLLA was partially miscible with PTGA when PTGA content was higher than 15 mass%. Increasing the PTGA content remarkably increased both the overall crystallization rate and spherulitic growth rate of PLLA, evidencing the plasticization role of PTGA; however, irrespective of the presence of PTGA, both the crystallization mechanism and the crystal structure of PLLA remained unchanged.

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Acknowledgements

Part of this work was financially supported by the National Natural Science Foundation, China (51573016 and 52173019).

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Authors and Affiliations

  1. State Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology, Beijing, 100029, China

    Hui Zhu, Zhiguo Jiang & Zhaobin Qiu

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  1. Hui Zhu
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  2. Zhiguo Jiang
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  3. Zhaobin Qiu
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Contributions

HZ: investigation, original draft preparation, writing; ZJ: conceptualization, supervision; ZQ: conceptualization, supervision, writing- reviewing and editing.

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Correspondence to Zhiguo Jiang or Zhaobin Qiu.

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Zhu, H., Jiang, Z. & Qiu, Z. Fully biodegradable poly(l-lactide)/poly(triethylene glycol adipate) blends with different phase behaviors and significantly increased crystallization rate. J Therm Anal Calorim 148, 13385–13391 (2023). https://doi.org/10.1007/s10973-023-12641-z

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