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Novel Polyarylene Ether Nitrile/BaTiO 3 -Decorated WS 2 Nanohybrid Crosslinked Nanocomposites for Thermal-Stable Dielectrics.

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Title: Novel Polyarylene Ether Nitrile/BaTiO 3 -Decorated WS 2 Nanohybrid Crosslinked Nanocomposites for Thermal-Stable Dielectrics.
Authors: Mao, Xiaohua1 (AUTHOR), Zhou, Jingtao1,2 (AUTHOR), Wu, Junda1 (AUTHOR), Chen, Siyi1,2 (AUTHOR), Wang, Pan2 (AUTHOR), You, Yong1 (AUTHOR) youyong@swun.edu.cn
Source: Polymers (20734360). Mar2026, Vol. 18 Issue 6, p747. 18p.
Subjects: Dielectrics, Crosslinked polymers, Hybrid materials, Barium titanate, Nanostructured materials, Polymers, Dielectric films, Filler materials
Abstract: To prepare high-temperature-resistant dielectric composite films, a novel three-dimensional nanofiller was fabricated using carboxylated polyarylene ether nitrile as a bridge, which tightly loads BaTiO3 nanoparticles onto WS2 nanosheets (WS2@BT) via in situ chemical bonding. Afterward, the WS2@BT nanofiller was introduced into the polyarylene ether nitrile (PEN) matrix, and high-temperature heat treatment was performed to form a crosslinked network, yielding CPEN/WS2@BT nanocomposites. Notably, the modified WS2@BT effectively improves the compatibility between the nanoparticles and the PEN matrix, which is superior to the compatibility of unmodified nanofillers with the matrix. Moreover, after crosslinking, CPEN/WS2@BT exhibits excellent comprehensive performance: when the filler content is 30 wt%, its glass transition temperature (Tg) reaches 257.83 °C, significantly higher than that of PEN/WS2@BT, and its dielectric constant is 193% higher than that of pure CPEN. In addition, the dielectric temperature coefficient remains below 1 × 10−3 °C−1 in the range of 25–220 °C. Overall, this work provides an effective and reliable strategy for preparing high-performance, high-temperature-resistant composite dielectric films. [ABSTRACT FROM AUTHOR]
Copyright of Polymers (20734360) is the property of MDPI and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
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  Data: Novel Polyarylene Ether Nitrile/BaTiO 3 -Decorated WS 2 Nanohybrid Crosslinked Nanocomposites for Thermal-Stable Dielectrics.
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  Data: <searchLink fieldCode="AR" term="%22Mao%2C+Xiaohua%22">Mao, Xiaohua</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Zhou%2C+Jingtao%22">Zhou, Jingtao</searchLink><relatesTo>1,2</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Wu%2C+Junda%22">Wu, Junda</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Chen%2C+Siyi%22">Chen, Siyi</searchLink><relatesTo>1,2</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Wang%2C+Pan%22">Wang, Pan</searchLink><relatesTo>2</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22You%2C+Yong%22">You, Yong</searchLink><relatesTo>1</relatesTo> (AUTHOR)<i> youyong@swun.edu.cn</i>
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  Data: <searchLink fieldCode="JN" term="%22Polymers+%2820734360%29%22">Polymers (20734360)</searchLink>. Mar2026, Vol. 18 Issue 6, p747. 18p.
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  Data: <searchLink fieldCode="DE" term="%22Dielectrics%22">Dielectrics</searchLink><br /><searchLink fieldCode="DE" term="%22Crosslinked+polymers%22">Crosslinked polymers</searchLink><br /><searchLink fieldCode="DE" term="%22Hybrid+materials%22">Hybrid materials</searchLink><br /><searchLink fieldCode="DE" term="%22Barium+titanate%22">Barium titanate</searchLink><br /><searchLink fieldCode="DE" term="%22Nanostructured+materials%22">Nanostructured materials</searchLink><br /><searchLink fieldCode="DE" term="%22Polymers%22">Polymers</searchLink><br /><searchLink fieldCode="DE" term="%22Dielectric+films%22">Dielectric films</searchLink><br /><searchLink fieldCode="DE" term="%22Filler+materials%22">Filler materials</searchLink>
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  Data: To prepare high-temperature-resistant dielectric composite films, a novel three-dimensional nanofiller was fabricated using carboxylated polyarylene ether nitrile as a bridge, which tightly loads BaTiO3 nanoparticles onto WS2 nanosheets (WS2@BT) via in situ chemical bonding. Afterward, the WS2@BT nanofiller was introduced into the polyarylene ether nitrile (PEN) matrix, and high-temperature heat treatment was performed to form a crosslinked network, yielding CPEN/WS2@BT nanocomposites. Notably, the modified WS2@BT effectively improves the compatibility between the nanoparticles and the PEN matrix, which is superior to the compatibility of unmodified nanofillers with the matrix. Moreover, after crosslinking, CPEN/WS2@BT exhibits excellent comprehensive performance: when the filler content is 30 wt%, its glass transition temperature (Tg) reaches 257.83 °C, significantly higher than that of PEN/WS2@BT, and its dielectric constant is 193% higher than that of pure CPEN. In addition, the dielectric temperature coefficient remains below 1 × 10−3 °C−1 in the range of 25–220 °C. Overall, this work provides an effective and reliable strategy for preparing high-performance, high-temperature-resistant composite dielectric films. [ABSTRACT FROM AUTHOR]
– Name: AbstractSuppliedCopyright
  Label:
  Group: Ab
  Data: <i>Copyright of Polymers (20734360) is the property of MDPI and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
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        Value: 10.3390/polym18060747
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        Text: English
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        Type: general
      – SubjectFull: Hybrid materials
        Type: general
      – SubjectFull: Barium titanate
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      – SubjectFull: Dielectric films
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      – SubjectFull: Filler materials
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      – TitleFull: Novel Polyarylene Ether Nitrile/BaTiO 3 -Decorated WS 2 Nanohybrid Crosslinked Nanocomposites for Thermal-Stable Dielectrics.
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            NameFull: Mao, Xiaohua
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            NameFull: Zhou, Jingtao
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              M: 03
              Text: Mar2026
              Type: published
              Y: 2026
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