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August 2, 2026Journal of Polymers and the EnvironmentOpen Access

The Estimation of Composition in Biosynthetic PHA Materials via fast Raman spectra giving insights into thermal processability dynamics

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Authors

PTPanagiotis C. TsaousisEKElianta KoraKAKonstantinos S. Andrikopoulos

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Overview

Randomized trial demonstrates the correlation of thermal properties in polyhydroxyalkanoates, indicating improved processing dynamics.

Key Points

  • This research aims to analyze the structure and thermal processability of various polyhydroxyalkanoate classes using micro-Raman spectroscopy.
  • Studied several PHA types (PHB, PHBV, PHO, PH34B) using micro-Raman spectroscopy and GC-FID chromatographic techniques.
  • Biosynthesized materials at lab-scale using pure and mixed microbial cultures and compared with commercial samples.
  • Analyzed correlations in vibrational contributions related to copolymerization and thermal properties.
  • Achieved R2 of over 0.96 for peak at 840 cm-1, correlating micro-Raman data with GC-FID results.
  • Demonstrated R2 of 0.98 for peak at 1450 cm-1, quantitatively comparing degrees of copolymerization in PHA classes.
  • Found that copolymerization affects thermal properties, delaying crystallization and reducing melting temperatures.

Cite This Study

Tsaousis et al. (2026) studied this question.

synapsesocial.com/papers/6a6eeadb1b0468a7eeab363dhttps://doi.org/10.1007/s10924-026-03934-z
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