A polymer blend approach to tailor the ferroelectric responses in P(VDF-TrFE) based copolymers

Xiang Zhong Chen, Xinyu Li, Xiao Shi Qian, Shan Wu, Sheng Guo Lu, Hai Ming Gu, Minren Lin, Qun Dong Shen, Q. M. Zhang

    Research output: Contribution to journalArticle

    35 Citations (Scopus)

    Abstract

    The electroactive properties of PVDF-based ferroelectric polymers can be tailored by blending. In order to investigate the tunability of electrocaloric effect (ECE) and ferroelectric responses, blends of ferroelectric relaxor poly(vinylidene difluoride-trifluoroethylene-chlorofluoroethylene) (P(VDF-TrFE-CFE)) terpolymer and normal ferroelectrics poly(vinylidene difluoride-co-trifluoroethylene) (P(VDF-TrFE)) copolymer are studied. At low copolymer content (<15 wt%), the coupling between the relaxor terpolymer and the nano-phase copolymer converts the copolymer into relaxor and causes an increase in the crystallinity compared with neat terpolymer. As a result, the blends exhibit an enhanced relaxor polarization response and a significant increase in the electrocaloric effect compared with those in the neat terpolymer. At high copolymer content, the blends exhibit mixed structures of the two components. By varying composition, the dielectric and ferroelectric properties of blends can be tuned in the range between the copolymer and terpolymer. This blend system provides a model system to study how random defects influence the polarization response in the normal ferroelectric copolymer, and to understand the relationship between the polarization response and ECE in the blends. The results demonstrate the promise of nanocomposite approaches in tailoring and enhancing ECE and ferroelectric properties in the ferroelectric polymers.

    Original languageEnglish (US)
    Pages (from-to)2373-2381
    Number of pages9
    JournalPolymer
    Volume54
    Issue number9
    DOIs
    StatePublished - Apr 19 2013

    Fingerprint

    Polymer blends
    Ferroelectric materials
    Copolymers
    Terpolymers
    Polarization
    Polymers
    Nanocomposites
    Defects
    Chemical analysis

    All Science Journal Classification (ASJC) codes

    • Organic Chemistry
    • Polymers and Plastics
    • Materials Chemistry

    Cite this

    Chen, Xiang Zhong ; Li, Xinyu ; Qian, Xiao Shi ; Wu, Shan ; Lu, Sheng Guo ; Gu, Hai Ming ; Lin, Minren ; Shen, Qun Dong ; Zhang, Q. M. / A polymer blend approach to tailor the ferroelectric responses in P(VDF-TrFE) based copolymers. In: Polymer. 2013 ; Vol. 54, No. 9. pp. 2373-2381.
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    abstract = "The electroactive properties of PVDF-based ferroelectric polymers can be tailored by blending. In order to investigate the tunability of electrocaloric effect (ECE) and ferroelectric responses, blends of ferroelectric relaxor poly(vinylidene difluoride-trifluoroethylene-chlorofluoroethylene) (P(VDF-TrFE-CFE)) terpolymer and normal ferroelectrics poly(vinylidene difluoride-co-trifluoroethylene) (P(VDF-TrFE)) copolymer are studied. At low copolymer content (<15 wt{\%}), the coupling between the relaxor terpolymer and the nano-phase copolymer converts the copolymer into relaxor and causes an increase in the crystallinity compared with neat terpolymer. As a result, the blends exhibit an enhanced relaxor polarization response and a significant increase in the electrocaloric effect compared with those in the neat terpolymer. At high copolymer content, the blends exhibit mixed structures of the two components. By varying composition, the dielectric and ferroelectric properties of blends can be tuned in the range between the copolymer and terpolymer. This blend system provides a model system to study how random defects influence the polarization response in the normal ferroelectric copolymer, and to understand the relationship between the polarization response and ECE in the blends. The results demonstrate the promise of nanocomposite approaches in tailoring and enhancing ECE and ferroelectric properties in the ferroelectric polymers.",
    author = "Chen, {Xiang Zhong} and Xinyu Li and Qian, {Xiao Shi} and Shan Wu and Lu, {Sheng Guo} and Gu, {Hai Ming} and Minren Lin and Shen, {Qun Dong} and Zhang, {Q. M.}",
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    Chen, XZ, Li, X, Qian, XS, Wu, S, Lu, SG, Gu, HM, Lin, M, Shen, QD & Zhang, QM 2013, 'A polymer blend approach to tailor the ferroelectric responses in P(VDF-TrFE) based copolymers', Polymer, vol. 54, no. 9, pp. 2373-2381. https://doi.org/10.1016/j.polymer.2013.02.041

    A polymer blend approach to tailor the ferroelectric responses in P(VDF-TrFE) based copolymers. / Chen, Xiang Zhong; Li, Xinyu; Qian, Xiao Shi; Wu, Shan; Lu, Sheng Guo; Gu, Hai Ming; Lin, Minren; Shen, Qun Dong; Zhang, Q. M.

    In: Polymer, Vol. 54, No. 9, 19.04.2013, p. 2373-2381.

    Research output: Contribution to journalArticle

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    AU - Chen, Xiang Zhong

    AU - Li, Xinyu

    AU - Qian, Xiao Shi

    AU - Wu, Shan

    AU - Lu, Sheng Guo

    AU - Gu, Hai Ming

    AU - Lin, Minren

    AU - Shen, Qun Dong

    AU - Zhang, Q. M.

    PY - 2013/4/19

    Y1 - 2013/4/19

    N2 - The electroactive properties of PVDF-based ferroelectric polymers can be tailored by blending. In order to investigate the tunability of electrocaloric effect (ECE) and ferroelectric responses, blends of ferroelectric relaxor poly(vinylidene difluoride-trifluoroethylene-chlorofluoroethylene) (P(VDF-TrFE-CFE)) terpolymer and normal ferroelectrics poly(vinylidene difluoride-co-trifluoroethylene) (P(VDF-TrFE)) copolymer are studied. At low copolymer content (<15 wt%), the coupling between the relaxor terpolymer and the nano-phase copolymer converts the copolymer into relaxor and causes an increase in the crystallinity compared with neat terpolymer. As a result, the blends exhibit an enhanced relaxor polarization response and a significant increase in the electrocaloric effect compared with those in the neat terpolymer. At high copolymer content, the blends exhibit mixed structures of the two components. By varying composition, the dielectric and ferroelectric properties of blends can be tuned in the range between the copolymer and terpolymer. This blend system provides a model system to study how random defects influence the polarization response in the normal ferroelectric copolymer, and to understand the relationship between the polarization response and ECE in the blends. The results demonstrate the promise of nanocomposite approaches in tailoring and enhancing ECE and ferroelectric properties in the ferroelectric polymers.

    AB - The electroactive properties of PVDF-based ferroelectric polymers can be tailored by blending. In order to investigate the tunability of electrocaloric effect (ECE) and ferroelectric responses, blends of ferroelectric relaxor poly(vinylidene difluoride-trifluoroethylene-chlorofluoroethylene) (P(VDF-TrFE-CFE)) terpolymer and normal ferroelectrics poly(vinylidene difluoride-co-trifluoroethylene) (P(VDF-TrFE)) copolymer are studied. At low copolymer content (<15 wt%), the coupling between the relaxor terpolymer and the nano-phase copolymer converts the copolymer into relaxor and causes an increase in the crystallinity compared with neat terpolymer. As a result, the blends exhibit an enhanced relaxor polarization response and a significant increase in the electrocaloric effect compared with those in the neat terpolymer. At high copolymer content, the blends exhibit mixed structures of the two components. By varying composition, the dielectric and ferroelectric properties of blends can be tuned in the range between the copolymer and terpolymer. This blend system provides a model system to study how random defects influence the polarization response in the normal ferroelectric copolymer, and to understand the relationship between the polarization response and ECE in the blends. The results demonstrate the promise of nanocomposite approaches in tailoring and enhancing ECE and ferroelectric properties in the ferroelectric polymers.

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