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March 3, 2026Macromolecules

Consequences of Melt Memory and Thermal Degradation for Poly(3-hydroxybutyrate -co -4-hydroxybutyrate) Crystallization

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Authors

HGHannelore GeeraertMHMilan Den HaeseLPLouis M. Pitet

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Overview

Observational analysis demonstrates crystallization is affected by thermal history in P(3HB-co-4HB), suggesting optimization is crucial.

Key Points

  • Crystallization behavior is significantly influenced by thermal degradation, affecting molecular weight.
  • A self-nucleation domain was identified using polarized optical microscopy, confirming a ∼20 °C range.
  • Thermal degradation at low processing temperatures reduced spherulite growth rates and overall crystallization behavior.
  • Careful optimization of processing temperatures is needed to balance melt memory effects with molecular weight retention.

Cite This Study

Geeraert et al. (2026) studied this question.

synapsesocial.com/papers/69a75b45c6e9836116a224fdhttps://doi.org/10.1021/acs.macromol.5c02581
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