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<p>In the present study, biodegradable polyhydroxybutyrate-chitosan blends were prepared using an acoustic cavitation-assisted precipitation method. The effects of different ratios of polyhydroxybutyrate and chitosan on the thermal and morphological properties of the blends were investigated. Differential scanning calorimetry showed a shift in the melting point to 164&#xa0;°C for the polyhydroxybutyrate–chitosan blend, compared to the initial melting point of 97&#xa0;°C for chitosan. It was also observed that the crystallinity of the blends significantly increased due to the addition of polyhydroxybutyrate into chitosan. Fourier transform infrared spectroscopy and NMR studies confirmed the chemical interactions between polyhydroxybutyrate and chitosan. Scanning electron microscopy analysis illustrated noticeable changes in surface morphology of the polyhydroxybutyrate-chitosan blends compared to virgin polyhydroxybutyrate and chitosan individually. Adjusting the proportion of chitosan played a pivotal role in regulating the composite’s characteristics-an essential aspect for its potential biomedical applications in the future.</p> Graphical Abstract <p></p>

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Acoustic Cavitation Assisted Preparation and Characterization of Polyhydroxy Butyrate-Chitosan Composite

  • 期刊论文

  • 发表日期：

    2025年6月5日

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  • Ananda J. Jadhav,
  • Pranit Patil,
  • Abhijeet D. Goswami,
  • Chandrakant R. Holkar,
  • Dipak V. Pinjari

摘要

In the present study, biodegradable polyhydroxybutyrate-chitosan blends were prepared using an acoustic cavitation-assisted precipitation method. The effects of different ratios of polyhydroxybutyrate and chitosan on the thermal and morphological properties of the blends were investigated. Differential scanning calorimetry showed a shift in the melting point to 164 °C for the polyhydroxybutyrate–chitosan blend, compared to the initial melting point of 97 °C for chitosan. It was also observed that the crystallinity of the blends significantly increased due to the addition of polyhydroxybutyrate into chitosan. Fourier transform infrared spectroscopy and NMR studies confirmed the chemical interactions between polyhydroxybutyrate and chitosan. Scanning electron microscopy analysis illustrated noticeable changes in surface morphology of the polyhydroxybutyrate-chitosan blends compared to virgin polyhydroxybutyrate and chitosan individually. Adjusting the proportion of chitosan played a pivotal role in regulating the composite’s characteristics-an essential aspect for its potential biomedical applications in the future.

Graphical Abstract