What does this research mean for the field?

Embedding naphthalene into a cross-linked epoxy resin network containing liquid crystal units significantly enhances its intrinsic thermal conductivity and degradability by leveraging π-π interactions to reduce interlayer spacing and phonon scattering. Novelty: ClaimNovelty.NOVEL_FINDING. Consensus alignment: ConsensusAlignment.NEUTRAL.

What question did this study set out to answer?

The research aims to enhance the thermal conductivity of epoxy resins by integrating naphthalene into the cross-linked network.

April 24, 2026

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Induction‐Proximity Strategy of Aromatic Ring‐Embedded Cross‐Linked Networks to Prepare Intrinsically High Thermal Conductivity Epoxy

Key Points

The research aims to enhance the thermal conductivity of epoxy resins by integrating naphthalene into the cross-linked network.
Employed an aromatic ring induction-proximity strategy by bonding naphthalene into resin networks.
Utilized molecular dynamics simulations to assess changes in interlayer spacing and phonon scattering.
Introduced dynamic ester bonds to enhance degradability.
Achieved in-plane thermal conductivity of 1.05 W m−1 K−1 and through-plane thermal conductivity of 0.45 W m−1 K−1.
Increased glass transition temperature above 220 °C and thermal stability with T 5% at 342.7 °C.
Demonstrated reduced phonon scattering and interlayer spacing, confirmed by molecular dynamics simulations.

Abstract

ABSTRACT The low thermal conductivity (TC) of epoxy resin limits its application in thermal management. Introducing liquid crystal units into the polymer can improve the TC. The significant restriction of molecular chain mobility, in the cross‐linked system, combined with the weak π‐π interactions between liquid crystal units and the large interlayer spacing of molecular chains, leads to severe phonon scattering, making it difficult to achieve a substantial increase in TC (through‐plane TC220 °C), excellent thermal stability (T 5% = 342.7 °C), and good water degradability. Molecular dynamics simulations confirmed that naphthalene ring embedding reduces both interlayer spacing and phonon scattering. This work presents a novel strategy for developing epoxy resins with intrinsically high TC and degradability.

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View Full Paper

Induction‐Proximity Strategy of Aromatic Ring‐Embedded Cross‐Linked Networks to Prepare Intrinsically High Thermal Conductivity Epoxy

Key Points

Abstract

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