ArticleScientific reports2023
Optimum processing conditions for the maximum crystallization rate of poly(3-hydroxybutyrate-co-3-hydroxyhexanoate).
Article in Scientific reports, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers.
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Who cites it
5 citing papers in PubMed.
- Materials designed to degrade: structure, properties, processing, and performance relationships in polyhydroxyalkanoate biopolymers.Polymer chemistry · 2025Review
- Modification of Processability and Shear-Induced Crystallization of Poly(lactic acid).Polymers · 2024Article
- Three/Four-Dimensional Printed PLA Nano/Microstructures: Crystallization Principles and Practical Applications.International journal of molecular sciences · 2023Review
- Effect of Monomers of 3-Hydroxyhexanoate on Properties of Copolymers Poly(3-Hydroxybutyrate-Polymers · 2023Article
- Role of Shear Flow on Structure Development during Post-Processing Annealing for Poly(lactic acid).Polymers · 2023Article
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Authors and funding
5 authors.
Funding
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Abstract
The effect of thermal and shear histories on the crystallization rate of poly(3-hydroxybutyrate-co-3-hydroxyhexanoate) (PHBHHx) was studied. As with other crystalline polymers, the shear history greatly affected the crystallization rate when the shear rate was beyond a critical value, i.e., the inverse of the Rouse relaxation time. Even after the formation of extended chain crystals, spherulite texture was clearly discernable. It grew from certain points on the extended chain crystals. Consequently, a row of spherulites appeared along the flow direction. The resin temperature in the molten state was also significant. When the sample was heated to 170 °C, which is beyond the main melting peak in the differential scanning calorimetry curve, unmolten crystals did not affect the linear viscoelastic properties. They acted as effective nucleating agents for the rest of the polymer during cooling. Therefore, the shear history hardly affected the crystallization rate and the number of spherulites.
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Registered trials
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