Interfacial control of PVDF-TrFE/SWCNT nanocomposites using P3HT-PMMA block copolymer for ultra-low percolation threshold

Kie Yong Cho; Yun Jae Lee; Hyun Ji Kim; Ho Gyu Yoon; Seung Sang Hwang; Yang Kyoo Han; Kyung Youl Baek

doi:10.1016/j.polymer.2015.09.008

Interfacial control of PVDF-TrFE/SWCNT nanocomposites using P3HT-PMMA block copolymer for ultra-low percolation threshold

Kie Yong Cho, Yun Jae Lee, Hyun Ji Kim, Ho Gyu Yoon, Seung Sang Hwang, Yang Kyoo Han, Kyung Youl Baek

Graduate School of management of technology

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

19 Citations (Scopus)

Abstract

Poly(vinylidenefluoride-co-trifluoroethylene) (PVDF-TrFE)/SWCNT nanocomposites with ultra-low percolation threshold were prepared by interfacial control using a block copolymer comapatibilizer. For this, a well-defined block copolymer of poly(3-hexylthiophene) (P3HT) and poly(methyl methacrylate) (PMMA) (P3HT-b-PMMA) was synthesized by combination of GRIM and ATRP (M_n = 24 K, M_w/M_n = 1.25), where the P3HT block segment wrapped the SWCNTs by π-π interaction and the resulting PMMA block segment dangled from the SWCNTs, which gave de-bundled SWCNTs without any aggregations for over 5 months in most common organic solvents for PMMA. The block copolymer coated SWCNT (TMCNT) was then mixed with PVDF-TrFE to prepare PVDF-TrFE/SWCNT nanocomposites (PVT-TMCNT), which enabled excellent dispersion of SWCNT in a PVDF-TrFE matrix without aggregation due to the miscibility of the PMMA on TMCNT and PVDF-TrFE. Obtained PVT-TMCNT showed large enhancements of the electrical conductivity and the dielectric constant with ultra-low percolation threshold (f_c = 0.07 wt.%) due to excellent interfacial control by the block copolymer comapatibilizer between SWCNT and PVDF-TrFE. Improved ferroelectric properties of PVT-TMCNT were also observed by an increase of field-induced polarization response, which was almost over 10-times higher than for neat PVDF-TrFE.

Original language	English
Pages (from-to)	55-63
Number of pages	9
Journal	Polymer
Volume	77
DOIs	https://doi.org/10.1016/j.polymer.2015.09.008
Publication status	Published - 2015 Oct 23

Keywords

Block copolymers
Carbon nanotubes
Fluoropolymers

ASJC Scopus subject areas

Organic Chemistry
Polymers and Plastics
Materials Chemistry

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@article{8c1c26cdc7d449f8ab8edfbb06a4db7b,

title = "Interfacial control of PVDF-TrFE/SWCNT nanocomposites using P3HT-PMMA block copolymer for ultra-low percolation threshold",

abstract = "Poly(vinylidenefluoride-co-trifluoroethylene) (PVDF-TrFE)/SWCNT nanocomposites with ultra-low percolation threshold were prepared by interfacial control using a block copolymer comapatibilizer. For this, a well-defined block copolymer of poly(3-hexylthiophene) (P3HT) and poly(methyl methacrylate) (PMMA) (P3HT-b-PMMA) was synthesized by combination of GRIM and ATRP (Mn = 24 K, Mw/Mn = 1.25), where the P3HT block segment wrapped the SWCNTs by π-π interaction and the resulting PMMA block segment dangled from the SWCNTs, which gave de-bundled SWCNTs without any aggregations for over 5 months in most common organic solvents for PMMA. The block copolymer coated SWCNT (TMCNT) was then mixed with PVDF-TrFE to prepare PVDF-TrFE/SWCNT nanocomposites (PVT-TMCNT), which enabled excellent dispersion of SWCNT in a PVDF-TrFE matrix without aggregation due to the miscibility of the PMMA on TMCNT and PVDF-TrFE. Obtained PVT-TMCNT showed large enhancements of the electrical conductivity and the dielectric constant with ultra-low percolation threshold (fc = 0.07 wt.%) due to excellent interfacial control by the block copolymer comapatibilizer between SWCNT and PVDF-TrFE. Improved ferroelectric properties of PVT-TMCNT were also observed by an increase of field-induced polarization response, which was almost over 10-times higher than for neat PVDF-TrFE.",

keywords = "Block copolymers, Carbon nanotubes, Fluoropolymers",

author = "Cho, {Kie Yong} and Lee, {Yun Jae} and Kim, {Hyun Ji} and Yoon, {Ho Gyu} and Hwang, {Seung Sang} and Han, {Yang Kyoo} and Baek, {Kyung Youl}",

note = "Funding Information: This work was financially supported by the International Collaborative R&D Program ( N0000678 ) funded by the Ministry of Trade, Industry, and Energy, (MOTIE, Korea) and partially from a grant from the Materials Architecturing Research Center of Korea Institute of Science and Technology (KIST). ",

year = "2015",

month = oct,

day = "23",

doi = "10.1016/j.polymer.2015.09.008",

language = "English",

volume = "77",

pages = "55--63",

journal = "Polymer (United Kingdom)",

issn = "0032-3861",

publisher = "Elsevier BV",

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TY - JOUR

T1 - Interfacial control of PVDF-TrFE/SWCNT nanocomposites using P3HT-PMMA block copolymer for ultra-low percolation threshold

AU - Cho, Kie Yong

AU - Lee, Yun Jae

AU - Kim, Hyun Ji

AU - Yoon, Ho Gyu

AU - Hwang, Seung Sang

AU - Han, Yang Kyoo

AU - Baek, Kyung Youl

N1 - Funding Information: This work was financially supported by the International Collaborative R&D Program ( N0000678 ) funded by the Ministry of Trade, Industry, and Energy, (MOTIE, Korea) and partially from a grant from the Materials Architecturing Research Center of Korea Institute of Science and Technology (KIST).

PY - 2015/10/23

Y1 - 2015/10/23

N2 - Poly(vinylidenefluoride-co-trifluoroethylene) (PVDF-TrFE)/SWCNT nanocomposites with ultra-low percolation threshold were prepared by interfacial control using a block copolymer comapatibilizer. For this, a well-defined block copolymer of poly(3-hexylthiophene) (P3HT) and poly(methyl methacrylate) (PMMA) (P3HT-b-PMMA) was synthesized by combination of GRIM and ATRP (Mn = 24 K, Mw/Mn = 1.25), where the P3HT block segment wrapped the SWCNTs by π-π interaction and the resulting PMMA block segment dangled from the SWCNTs, which gave de-bundled SWCNTs without any aggregations for over 5 months in most common organic solvents for PMMA. The block copolymer coated SWCNT (TMCNT) was then mixed with PVDF-TrFE to prepare PVDF-TrFE/SWCNT nanocomposites (PVT-TMCNT), which enabled excellent dispersion of SWCNT in a PVDF-TrFE matrix without aggregation due to the miscibility of the PMMA on TMCNT and PVDF-TrFE. Obtained PVT-TMCNT showed large enhancements of the electrical conductivity and the dielectric constant with ultra-low percolation threshold (fc = 0.07 wt.%) due to excellent interfacial control by the block copolymer comapatibilizer between SWCNT and PVDF-TrFE. Improved ferroelectric properties of PVT-TMCNT were also observed by an increase of field-induced polarization response, which was almost over 10-times higher than for neat PVDF-TrFE.

AB - Poly(vinylidenefluoride-co-trifluoroethylene) (PVDF-TrFE)/SWCNT nanocomposites with ultra-low percolation threshold were prepared by interfacial control using a block copolymer comapatibilizer. For this, a well-defined block copolymer of poly(3-hexylthiophene) (P3HT) and poly(methyl methacrylate) (PMMA) (P3HT-b-PMMA) was synthesized by combination of GRIM and ATRP (Mn = 24 K, Mw/Mn = 1.25), where the P3HT block segment wrapped the SWCNTs by π-π interaction and the resulting PMMA block segment dangled from the SWCNTs, which gave de-bundled SWCNTs without any aggregations for over 5 months in most common organic solvents for PMMA. The block copolymer coated SWCNT (TMCNT) was then mixed with PVDF-TrFE to prepare PVDF-TrFE/SWCNT nanocomposites (PVT-TMCNT), which enabled excellent dispersion of SWCNT in a PVDF-TrFE matrix without aggregation due to the miscibility of the PMMA on TMCNT and PVDF-TrFE. Obtained PVT-TMCNT showed large enhancements of the electrical conductivity and the dielectric constant with ultra-low percolation threshold (fc = 0.07 wt.%) due to excellent interfacial control by the block copolymer comapatibilizer between SWCNT and PVDF-TrFE. Improved ferroelectric properties of PVT-TMCNT were also observed by an increase of field-induced polarization response, which was almost over 10-times higher than for neat PVDF-TrFE.

KW - Block copolymers

KW - Carbon nanotubes

KW - Fluoropolymers

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DO - 10.1016/j.polymer.2015.09.008

M3 - Article

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JO - Polymer (United Kingdom)

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SN - 0032-3861

ER -

Interfacial control of PVDF-TrFE/SWCNT nanocomposites using P3HT-PMMA block copolymer for ultra-low percolation threshold

Abstract

Keywords

ASJC Scopus subject areas

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