Nanocomposite proton conducting membranes based on amphiphilic PVDF graft copolymer

Dong Kyu Roh, Jin Kyu Choi, Jong Kwan Koh, Yong Gun Shul, Jong Hak Kim

Research output: Contribution to journalArticle

21 Citations (Scopus)

Abstract

A novel comb-like amphiphilic graft copolymer of poly(vinylidene fluoride-co-chlorotrifluoroethylene)-graft-poly(4-styrene sulfonic acid-co-trimethoxysilyl propyl methacrylate), i.e. P(VDF-co-CTFE)-g-P(SSA-co- TMSPMA) was synthesized using an atom transfer radical polymerization (ATRP) technique. Successful synthesis and a microphase-separated structure of the copolymer were confirmed by proton nuclear magnetic resonance (1H NMR), FTIR spectroscopy and transmission electron microscopy (TEM). This graft copolymer was combined with tetraethoxysilane (TEOS) under acidic conditions to produce organic-inorganic nanocomposite membranes through an in-situ sol-gel reaction between TEOS and PTMSPMA, as characterized by X-ray diffraction (XRD) and TEM. Upon the introduction of silica, the proton conductivity and water uptake of the membranes decreased slightly but the thermal and mechanical properties of the membranes were enhanced significantly. Various morphologies of the nanocomposite membranes were obtained after controlling the TEOS concentration, which were correlated with the thermal, mechanical and transport properties.

Original languageEnglish
Pages (from-to)271-278
Number of pages8
JournalMacromolecular Research
Volume18
Issue number3
DOIs
Publication statusPublished - 2010 Mar 1

Fingerprint

Graft copolymers
Protons
Nanocomposites
Membranes
Polymers
Thermodynamic properties
Nuclear magnetic resonance
Transmission electron microscopy
Mechanical properties
Styrene
Proton conductivity
Sulfonic Acids
Methacrylates
Atom transfer radical polymerization
Grafts
Silicon Dioxide
Transport properties
Nuclear magnetic resonance spectroscopy
Sol-gels
Copolymers

All Science Journal Classification (ASJC) codes

  • Chemical Engineering(all)
  • Organic Chemistry
  • Polymers and Plastics
  • Materials Chemistry

Cite this

Roh, Dong Kyu ; Choi, Jin Kyu ; Koh, Jong Kwan ; Shul, Yong Gun ; Kim, Jong Hak. / Nanocomposite proton conducting membranes based on amphiphilic PVDF graft copolymer. In: Macromolecular Research. 2010 ; Vol. 18, No. 3. pp. 271-278.
@article{e2ea4e11839f4c10a5c9ca76cd942915,
title = "Nanocomposite proton conducting membranes based on amphiphilic PVDF graft copolymer",
abstract = "A novel comb-like amphiphilic graft copolymer of poly(vinylidene fluoride-co-chlorotrifluoroethylene)-graft-poly(4-styrene sulfonic acid-co-trimethoxysilyl propyl methacrylate), i.e. P(VDF-co-CTFE)-g-P(SSA-co- TMSPMA) was synthesized using an atom transfer radical polymerization (ATRP) technique. Successful synthesis and a microphase-separated structure of the copolymer were confirmed by proton nuclear magnetic resonance (1H NMR), FTIR spectroscopy and transmission electron microscopy (TEM). This graft copolymer was combined with tetraethoxysilane (TEOS) under acidic conditions to produce organic-inorganic nanocomposite membranes through an in-situ sol-gel reaction between TEOS and PTMSPMA, as characterized by X-ray diffraction (XRD) and TEM. Upon the introduction of silica, the proton conductivity and water uptake of the membranes decreased slightly but the thermal and mechanical properties of the membranes were enhanced significantly. Various morphologies of the nanocomposite membranes were obtained after controlling the TEOS concentration, which were correlated with the thermal, mechanical and transport properties.",
author = "Roh, {Dong Kyu} and Choi, {Jin Kyu} and Koh, {Jong Kwan} and Shul, {Yong Gun} and Kim, {Jong Hak}",
year = "2010",
month = "3",
day = "1",
doi = "10.1007/s13233-010-0311-9",
language = "English",
volume = "18",
pages = "271--278",
journal = "Macromolecular Research",
issn = "1598-5032",
publisher = "Polymer Society of Korea",
number = "3",

}

Nanocomposite proton conducting membranes based on amphiphilic PVDF graft copolymer. / Roh, Dong Kyu; Choi, Jin Kyu; Koh, Jong Kwan; Shul, Yong Gun; Kim, Jong Hak.

In: Macromolecular Research, Vol. 18, No. 3, 01.03.2010, p. 271-278.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Nanocomposite proton conducting membranes based on amphiphilic PVDF graft copolymer

AU - Roh, Dong Kyu

AU - Choi, Jin Kyu

AU - Koh, Jong Kwan

AU - Shul, Yong Gun

AU - Kim, Jong Hak

PY - 2010/3/1

Y1 - 2010/3/1

N2 - A novel comb-like amphiphilic graft copolymer of poly(vinylidene fluoride-co-chlorotrifluoroethylene)-graft-poly(4-styrene sulfonic acid-co-trimethoxysilyl propyl methacrylate), i.e. P(VDF-co-CTFE)-g-P(SSA-co- TMSPMA) was synthesized using an atom transfer radical polymerization (ATRP) technique. Successful synthesis and a microphase-separated structure of the copolymer were confirmed by proton nuclear magnetic resonance (1H NMR), FTIR spectroscopy and transmission electron microscopy (TEM). This graft copolymer was combined with tetraethoxysilane (TEOS) under acidic conditions to produce organic-inorganic nanocomposite membranes through an in-situ sol-gel reaction between TEOS and PTMSPMA, as characterized by X-ray diffraction (XRD) and TEM. Upon the introduction of silica, the proton conductivity and water uptake of the membranes decreased slightly but the thermal and mechanical properties of the membranes were enhanced significantly. Various morphologies of the nanocomposite membranes were obtained after controlling the TEOS concentration, which were correlated with the thermal, mechanical and transport properties.

AB - A novel comb-like amphiphilic graft copolymer of poly(vinylidene fluoride-co-chlorotrifluoroethylene)-graft-poly(4-styrene sulfonic acid-co-trimethoxysilyl propyl methacrylate), i.e. P(VDF-co-CTFE)-g-P(SSA-co- TMSPMA) was synthesized using an atom transfer radical polymerization (ATRP) technique. Successful synthesis and a microphase-separated structure of the copolymer were confirmed by proton nuclear magnetic resonance (1H NMR), FTIR spectroscopy and transmission electron microscopy (TEM). This graft copolymer was combined with tetraethoxysilane (TEOS) under acidic conditions to produce organic-inorganic nanocomposite membranes through an in-situ sol-gel reaction between TEOS and PTMSPMA, as characterized by X-ray diffraction (XRD) and TEM. Upon the introduction of silica, the proton conductivity and water uptake of the membranes decreased slightly but the thermal and mechanical properties of the membranes were enhanced significantly. Various morphologies of the nanocomposite membranes were obtained after controlling the TEOS concentration, which were correlated with the thermal, mechanical and transport properties.

UR - http://www.scopus.com/inward/record.url?scp=77955868482&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=77955868482&partnerID=8YFLogxK

U2 - 10.1007/s13233-010-0311-9

DO - 10.1007/s13233-010-0311-9

M3 - Article

AN - SCOPUS:77955868482

VL - 18

SP - 271

EP - 278

JO - Macromolecular Research

JF - Macromolecular Research

SN - 1598-5032

IS - 3

ER -