Spatial Structure Design toward Dielectric Elastomers by Separating Charge Centers in Chain Segments

Chen, Yifu; Wu, Siwu; Mi, Jianguo; Tian, Ming; Liang, Mingying; Chen, Jialiang; Tang, Zhenghai; Wu, Wenjie; Guo, Baochun; Zhang, Liqun

doi:10.1021/acs.macromol.3c01683

Macromolecules

2023

DOI: 10.1021/acs.macromol.3c01683

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Spatial Structure Design toward Dielectric Elastomers by Separating Charge Centers in Chain Segments

Yifu Chen,

Siwu Wu,

Jianguo Mi

et al.

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Cited by 3 publications

References 47 publications

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Separating Charge Centers of Chain Segments in Dielectric Elastomer through Steric Hindrance Engineering

Chen,

Wu,

Guo

et al. 2024

Macromol. Rapid Commun.

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Theoretically, separating the positive and negative charge centers of the chain segments of dielectric elastomers (DEs) is a viable alternative to the conventional decoration of chain backbone with polar handles, since it can dramatically increase the dipole vector and hence the dielectric constant (ε’) of the DEs while circumvent the undesired impact of the decorated polar handles on the dielectric loss (tan δ). Herein, we demonstrated a novel and universal method to achieve effective separation of the charge centers of chain segments in homogeneous DEs by steric hindrance engineering, i.e. by incorporating a series of different included angle‐containing building blocks into the networks. Both experimental and simulation results have shown that the introduction of these building blocks can create a spatially fixed included angle between two adjacent chain segments, thus separating the charge center of the associated region. Accordingly, incorporating a minimal amount of these building blocks (∼5 mol%) can lead to a considerably sharp increase (∼50%) in the ε’ of the DEs while maintaining an extremely low tan δ (∼0.006@1 kHz), indicating that this methodology can substantially optimize the dielectric performance of DEs based on a completely different mechanism from the established methods.This article is protected by copyright. All rights reserved

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Separating Charge Centers of Chain Segments in Dielectric Elastomer through Steric Hindrance Engineering

Chen,

Wu,

Guo

et al. 2024

Macromol. Rapid Commun.

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Improved electro-actuation of polydimethylsiloxane-based composite dielectric elastomer via constructing semi-interlocked dual-network

Jin,

Zhang,

Guo

et al. 2025

Polymer

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Transformation of the strengthening and toughening modes of a poly(urethane) elastomer with hard segments of Ti₃C₂ MXene and its excellent triboelectric performance

Sun,

Yuan,

Han

et al. 2024

J. Mater. Chem. A

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Spatial Structure Design toward Dielectric Elastomers by Separating Charge Centers in Chain Segments

Cited by 3 publications

References 47 publications

Separating Charge Centers of Chain Segments in Dielectric Elastomer through Steric Hindrance Engineering

Separating Charge Centers of Chain Segments in Dielectric Elastomer through Steric Hindrance Engineering

Improved electro-actuation of polydimethylsiloxane-based composite dielectric elastomer via constructing semi-interlocked dual-network

Transformation of the strengthening and toughening modes of a poly(urethane) elastomer with hard segments of Ti₃C₂ MXene and its excellent triboelectric performance

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Spatial Structure Design toward Dielectric Elastomers by Separating Charge Centers in Chain Segments

Cited by 3 publications

References 47 publications

Separating Charge Centers of Chain Segments in Dielectric Elastomer through Steric Hindrance Engineering

Separating Charge Centers of Chain Segments in Dielectric Elastomer through Steric Hindrance Engineering

Improved electro-actuation of polydimethylsiloxane-based composite dielectric elastomer via constructing semi-interlocked dual-network

Transformation of the strengthening and toughening modes of a poly(urethane) elastomer with hard segments of Ti3C2 MXene and its excellent triboelectric performance

Contact Info

Product

Resources

About

Transformation of the strengthening and toughening modes of a poly(urethane) elastomer with hard segments of Ti₃C₂ MXene and its excellent triboelectric performance