High β-phase Poly(vinylidene fluoride) Using a Thermally Decomposable Molecular Splint

Jinwoo Choi; Kyuho Lee; Minhwan Lee; Taebin Kim; Sangwon Eom; Jae Hyun Sim; Won Bo Lee; Yong Joo Kim; Cheolmin Park; Youngjong Kang

doi:10.1002/aelm.202200279

High β-phase Poly(vinylidene fluoride) Using a Thermally Decomposable Molecular Splint

Jinwoo Choi, Kyuho Lee, Minhwan Lee, Taebin Kim, Sangwon Eom, Jae Hyun Sim, Won Bo Lee, Yong Joo Kim, Cheolmin Park, Youngjong Kang

Department of Materials Science and Engineering

Research output: Contribution to journal › Article › peer-review

Abstract

An additive, 1,4-butadiene sulfone (BDS), which generates H₂SO₃ by in situ thermal retro-Diels-Alder decompositions, is used for preparing high β-phase polyvinylidene fluoride (PVDF) films. Because of preferential multiple non-covalent interactions of H₂SO₃ with all-trans configuration of PVDF, β-phase PVDF is spontaneously induced without mechanical drawing and/or extensive thermal annealing process. PVDF films cast from PVDF/BDS/water solutions exhibit high β-phase content (f_β = 95%) when the BDS concentration is only c_BDS = 1.0 wt%, which is confirmed by polarized optical microscopy (POM), SEM, Fourier transform infrared spectroscopy (FT-IR), differential scan calorimetry (DSC), and 2D grazing incidence wide-angle X-ray scattering (GIWAXS). Because of the high β-phase content, PVDF films prepared by using BDS exhibit excellent ferroelectric and piezoelectric properties (E_c = 50 MV/m, P_r = 5 µC/cm², and d₃₃ = ≈-25 pm/V). Furthermore, a triboelectric nanogenerator (TENG) developed with high β-phase PVDF film exhibits enhanced performance as 2.5 times higher than neat PVDF film in output charge density, allowing reliable operation of conventional electronic devices.

Original language	English
Article number	2200279
Journal	Advanced Electronic Materials
Volume	9
Issue number	1
DOIs	https://doi.org/10.1002/aelm.202200279
Publication status	Published - 2023 Jan

Bibliographical note

Funding Information:
J.C., K.L., and M.L. contributed equally to this work. This research was supported by Basic Science Research Program through the National Research Foundation of Korea (NRF) funded by the Ministry of Science, ICT & Future Planning (2020R1A2C2100802). X‐ray experiments were conducted at 9A beamlines at Pohang Accelerator Laboratory (PAL), Korea. J.C., S.E., and J.H. conducted experiments including POM, FT‐IR, DSC, and X‐ray measurements. M.L. conducted theoretical calculations. K.L. and T.K. assisted PFM, MFM, and TENG experiments. W.B.L., Y.K., and C.P helped to analyze the data and revise the manuscript. Y.K. conceived and supervised the project.

Publisher Copyright:
© 2022 The Authors. Advanced Electronic Materials published by Wiley-VCH GmbH.

All Science Journal Classification (ASJC) codes

Electronic, Optical and Magnetic Materials

Access to Document

10.1002/aelm.202200279

Cite this

@article{a84cc014ed514b2a9af97512a6ea291e,

title = "High β-phase Poly(vinylidene fluoride) Using a Thermally Decomposable Molecular Splint",

abstract = "An additive, 1,4-butadiene sulfone (BDS), which generates H2SO3 by in situ thermal retro-Diels-Alder decompositions, is used for preparing high β-phase polyvinylidene fluoride (PVDF) films. Because of preferential multiple non-covalent interactions of H2SO3 with all-trans configuration of PVDF, β-phase PVDF is spontaneously induced without mechanical drawing and/or extensive thermal annealing process. PVDF films cast from PVDF/BDS/water solutions exhibit high β-phase content (fβ = 95%) when the BDS concentration is only cBDS = 1.0 wt%, which is confirmed by polarized optical microscopy (POM), SEM, Fourier transform infrared spectroscopy (FT-IR), differential scan calorimetry (DSC), and 2D grazing incidence wide-angle X-ray scattering (GIWAXS). Because of the high β-phase content, PVDF films prepared by using BDS exhibit excellent ferroelectric and piezoelectric properties (Ec = 50 MV/m, Pr = 5 µC/cm2, and d33 = ≈-25 pm/V). Furthermore, a triboelectric nanogenerator (TENG) developed with high β-phase PVDF film exhibits enhanced performance as 2.5 times higher than neat PVDF film in output charge density, allowing reliable operation of conventional electronic devices.",

author = "Jinwoo Choi and Kyuho Lee and Minhwan Lee and Taebin Kim and Sangwon Eom and Sim, {Jae Hyun} and Lee, {Won Bo} and Kim, {Yong Joo} and Cheolmin Park and Youngjong Kang",

note = "Funding Information: J.C., K.L., and M.L. contributed equally to this work. This research was supported by Basic Science Research Program through the National Research Foundation of Korea (NRF) funded by the Ministry of Science, ICT & Future Planning (2020R1A2C2100802). X‐ray experiments were conducted at 9A beamlines at Pohang Accelerator Laboratory (PAL), Korea. J.C., S.E., and J.H. conducted experiments including POM, FT‐IR, DSC, and X‐ray measurements. M.L. conducted theoretical calculations. K.L. and T.K. assisted PFM, MFM, and TENG experiments. W.B.L., Y.K., and C.P helped to analyze the data and revise the manuscript. Y.K. conceived and supervised the project. Publisher Copyright: {\textcopyright} 2022 The Authors. Advanced Electronic Materials published by Wiley-VCH GmbH.",

year = "2023",

month = jan,

doi = "10.1002/aelm.202200279",

language = "English",

volume = "9",

journal = "Advanced Electronic Materials",

issn = "2199-160X",

publisher = "Wiley-VCH Verlag",

number = "1",

}

TY - JOUR

T1 - High β-phase Poly(vinylidene fluoride) Using a Thermally Decomposable Molecular Splint

AU - Choi, Jinwoo

AU - Lee, Kyuho

AU - Lee, Minhwan

AU - Kim, Taebin

AU - Eom, Sangwon

AU - Sim, Jae Hyun

AU - Lee, Won Bo

AU - Kim, Yong Joo

AU - Park, Cheolmin

AU - Kang, Youngjong

N1 - Funding Information: J.C., K.L., and M.L. contributed equally to this work. This research was supported by Basic Science Research Program through the National Research Foundation of Korea (NRF) funded by the Ministry of Science, ICT & Future Planning (2020R1A2C2100802). X‐ray experiments were conducted at 9A beamlines at Pohang Accelerator Laboratory (PAL), Korea. J.C., S.E., and J.H. conducted experiments including POM, FT‐IR, DSC, and X‐ray measurements. M.L. conducted theoretical calculations. K.L. and T.K. assisted PFM, MFM, and TENG experiments. W.B.L., Y.K., and C.P helped to analyze the data and revise the manuscript. Y.K. conceived and supervised the project. Publisher Copyright: © 2022 The Authors. Advanced Electronic Materials published by Wiley-VCH GmbH.

PY - 2023/1

Y1 - 2023/1

N2 - An additive, 1,4-butadiene sulfone (BDS), which generates H2SO3 by in situ thermal retro-Diels-Alder decompositions, is used for preparing high β-phase polyvinylidene fluoride (PVDF) films. Because of preferential multiple non-covalent interactions of H2SO3 with all-trans configuration of PVDF, β-phase PVDF is spontaneously induced without mechanical drawing and/or extensive thermal annealing process. PVDF films cast from PVDF/BDS/water solutions exhibit high β-phase content (fβ = 95%) when the BDS concentration is only cBDS = 1.0 wt%, which is confirmed by polarized optical microscopy (POM), SEM, Fourier transform infrared spectroscopy (FT-IR), differential scan calorimetry (DSC), and 2D grazing incidence wide-angle X-ray scattering (GIWAXS). Because of the high β-phase content, PVDF films prepared by using BDS exhibit excellent ferroelectric and piezoelectric properties (Ec = 50 MV/m, Pr = 5 µC/cm2, and d33 = ≈-25 pm/V). Furthermore, a triboelectric nanogenerator (TENG) developed with high β-phase PVDF film exhibits enhanced performance as 2.5 times higher than neat PVDF film in output charge density, allowing reliable operation of conventional electronic devices.

AB - An additive, 1,4-butadiene sulfone (BDS), which generates H2SO3 by in situ thermal retro-Diels-Alder decompositions, is used for preparing high β-phase polyvinylidene fluoride (PVDF) films. Because of preferential multiple non-covalent interactions of H2SO3 with all-trans configuration of PVDF, β-phase PVDF is spontaneously induced without mechanical drawing and/or extensive thermal annealing process. PVDF films cast from PVDF/BDS/water solutions exhibit high β-phase content (fβ = 95%) when the BDS concentration is only cBDS = 1.0 wt%, which is confirmed by polarized optical microscopy (POM), SEM, Fourier transform infrared spectroscopy (FT-IR), differential scan calorimetry (DSC), and 2D grazing incidence wide-angle X-ray scattering (GIWAXS). Because of the high β-phase content, PVDF films prepared by using BDS exhibit excellent ferroelectric and piezoelectric properties (Ec = 50 MV/m, Pr = 5 µC/cm2, and d33 = ≈-25 pm/V). Furthermore, a triboelectric nanogenerator (TENG) developed with high β-phase PVDF film exhibits enhanced performance as 2.5 times higher than neat PVDF film in output charge density, allowing reliable operation of conventional electronic devices.

UR - http://www.scopus.com/inward/record.url?scp=85138678227&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=85138678227&partnerID=8YFLogxK

U2 - 10.1002/aelm.202200279

DO - 10.1002/aelm.202200279

M3 - Article

AN - SCOPUS:85138678227

SN - 2199-160X

VL - 9

JO - Advanced Electronic Materials

JF - Advanced Electronic Materials

IS - 1

M1 - 2200279

ER -

High β-phase Poly(vinylidene fluoride) Using a Thermally Decomposable Molecular Splint

Abstract

Bibliographical note

All Science Journal Classification (ASJC) codes

Access to Document

Other files and links

Fingerprint

Cite this