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June 13, 2026ACS Applied Polymer Materials

Exploring Dynamic Disulfide Bonds in Terpene-Derived Covalent Adaptable Network: A Trade-Off between Non-Reprocessable and Reprocessable Elastomeric Epoxy Thermoset

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Authors

CBChandan BodhakPPPriyankkumar PatelRGRam K. Gupta

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Overview

Randomized trial explores dynamic disulfide bonds affecting mechanical properties in terpene-based elastomers, suggesting a path for sustainable materials.

Key Points

  • The aim is to evaluate the influence of dynamic disulfide bonds on the mechanical properties of terpene-derived epoxy networks.
  • Two-step synthesis of thioether-bonded epoxy prepolymer from limonene and geraniol.
  • Thermal curing with aliphatic diamines and cystamine to form both non-reprocessable and reprocessable elastomers.
  • Assessment of thermal transitions and tensile strengths using differential scanning calorimetry (DSC).
  • Non-reprocessable elastomers exhibited tensile strengths of 11.6 MPa and 17.9 MPa for LME_ECH-EDA and GME_ECH-EDA, respectively.
  • Reprocessable elastomers LME_ECH–CYS and GME_ECH–CYS showed lower tensile strengths of 3.1 MPa and 3.7 MPa but better elongation at break.
  • Presence of dynamic disulfide bonds resulted in improved reprocessing efficiency compared to non-reprocessable counterparts.

Cite This Study

Bodhak et al. (2026) studied this question.

synapsesocial.com/papers/6a2cf34dfaef96ed7f055d85https://doi.org/10.1021/acsapm.6c01065
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