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July 30, 2026Journal of Polymers and the EnvironmentOpen Access

Tunable Biobased Epoxy Networks via Zn(acac)₂: From Limited Esterification to Dynamic Structures

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Authors

MSMatheus Ferreira de SouzaISIngridy Dayane dos Santos SilvaRCRafael Braga da Cunha

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Overview

Randomized trial investigates curing and thermal stability in biobased epoxy systems, suggesting a new design platform.

Key Points

  • This work explores how zinc acetylacetonate affects the curing and structural properties of biobased epoxy systems.
  • Formulations included 0, 2.5, and 10 wt% Zn(acac)₂, characterized by FTIR, DSC, TG–IR, rheology, and swelling/gel fraction analyses.
  • FTIR analyzed epoxy consumption, while DSC assessed curing temperature and reaction pathway changes.
  • Rheology examined the mechanical properties and dynamics of the polymer networks.
  • FTIR confirmed over 97% epoxy consumption, indicating effective crosslinking.
  • DSC showed that increased Zn(acac)₂ reduced curing temperature and reaction enthalpy.
  • Rheology revealed higher storage modulus and elevated activation energies for networks at higher catalyst loadings.

Cite This Study

Souza et al. (2026) studied this question.

synapsesocial.com/papers/6a6af52c60e2b924d3ea0f39https://doi.org/10.1007/s10924-026-03927-y
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