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Multiple melting behavior of biodegradable poly(butylene succinate-co-terephthalate) (PBST) copolyester

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Abstract

The multiple melting behavior of biodegradable poly(butylene succinate-co-terephthalate) (PBST) copolyester with 70 mol% aromatic units isothermally crystallized at various temperatures was investigated by wide angle X-ray diffraction, differential scanning calorimetry (DSC) and modulated DSC (MDSC). PBST copolyester exhibited at most three melting peaks in the DSC heating traces and the dual lamellar population model was utilized for interpreting the origin of the multiple melting behavior. Multiple melting peaks were observed even at high heating rates and the co-existence of the melting-recrystallization-remelting model was suggested. The MDSC results gave the direct evidences to the conclusion that the combination of the two models mentioned above was able to explain the multiple melting behavior of PBST copolyester properly.

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Acknowledgements

This study has been financially supported by the National Natural Science Foundation of China (51003011) and Shanghai Science and Technology Development Funds (11QA1400200), to which the authors express their gratitude.

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Authors and Affiliations

  1. Key Laboratory of Textile Science & Technology, Ministry of Education, Donghua University, Shanghai, 201620, China

    Zhang Jie & Li Fa-xue

  2. College of Textile, Donghua University, 2999 North Renmin Road, Shanghai, 201620, China

    Zhang Jie & Li Fa-xue

  3. Modern Textile Institute, Donghua University, Shanghai, 200051, China

    Yu Jiang-yong

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  1. Zhang Jie
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  2. Li Fa-xue
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  3. Yu Jiang-yong
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Correspondence to Li Fa-xue.

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Jie, Z., Fa-xue, L. & Jiang-yong, Y. Multiple melting behavior of biodegradable poly(butylene succinate-co-terephthalate) (PBST) copolyester. J Therm Anal Calorim 111, 711–715 (2013). https://doi.org/10.1007/s10973-012-2229-2

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  • DOI: https://doi.org/10.1007/s10973-012-2229-2

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