Ananda J. Jadhav, Pranit Patil, Abhijeet D. Goswami, Chandrakant R. Holkar, Dipak V. Pinjari
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Acoustic Cavitation Assisted Preparation and Characterization of Polyhydroxy Butyrate-Chitosan Composite
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.
期刊介绍：
The Journal of Polymers and the Environment fills the need for an international forum in this diverse and rapidly expanding field. The journal serves a crucial role for the publication of information from a wide range of disciplines and is a central outlet for the publication of high-quality peer-reviewed original papers, review articles and short communications. The journal is intentionally interdisciplinary in regard to contributions and covers the following subjects - polymers, environmentally degradable polymers, and degradation pathways: biological, photochemical, oxidative and hydrolytic; new environmental materials: derived by chemical and biosynthetic routes; environmental blends and composites; developments in processing and reactive processing of environmental polymers; characterization of environmental materials: mechanical, physical, thermal, rheological, morphological, and others; recyclable polymers and plastics recycling environmental testing: in-laboratory simulations, outdoor exposures, and standardization of methodologies; environmental fate: end products and intermediates of biodegradation; microbiology and enzymology of polymer biodegradation; solid-waste management and public legislation specific to environmental polymers; and other related topics.
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