Imidazolium-functionalized poly(arylene ether sulfone) block copolymer as an anion exchange membrane for alkaline fuel cell

Anil H.N. Rao; Roshni Lilly Thankamony; Hyoung Juhn Kim; Sukwoo Nam; Tae Hyun Kim

doi:10.1016/j.polymer.2012.11.023

Imidazolium-functionalized poly(arylene ether sulfone) block copolymer as an anion exchange membrane for alkaline fuel cell

Anil H.N. Rao, Roshni Lilly Thankamony, Hyoung Juhn Kim, Sukwoo Nam, Tae Hyun Kim

GREEN SCHOOL (Graduate School of Energy and Environment)

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

104 Citations (Scopus)

Abstract

An ethyl imidazolium-functionalized poly(arylene ether sulfone) (EI-PES) block copolymer was prepared as a novel anion exchange membrane. The EI-PES polymer was synthesized by polycondensation between the F- and OH-terminated oligomers, followed by benzylic bromination and imidazolium functionalization (homogeneous functionalization). The quaternary ammonium-functionalized PES (QA-PES) was also prepared by heterogeneous functionalization, and the properties were compared with EI-PES. The membrane obtained from EI-PES showed a well-defined phase separated morphology between hydrophobic and hydrophilic ionic units of the block copolymer. An IEC of 1.45 meq/g with hydroxide conductivity of 0.03 S/cm at r.t. was observed for EI-PES. The EI-PES membrane also displayed excellent dimensional, thermal, mechanical and chemical stabilities.

Original language	English
Pages (from-to)	111-119
Number of pages	9
Journal	Polymer
Volume	54
Issue number	1
DOIs	https://doi.org/10.1016/j.polymer.2012.11.023
Publication status	Published - 2013 Jan 8

Keywords

Anion exchange membrane
Block copolymer
Imidazolium-functionalized polymer

ASJC Scopus subject areas

Organic Chemistry
Polymers and Plastics
Materials Chemistry

Access to Document

10.1016/j.polymer.2012.11.023

Cite this

@article{adbf978e0cdd4a47ad3a39b10c8e40a1,

title = "Imidazolium-functionalized poly(arylene ether sulfone) block copolymer as an anion exchange membrane for alkaline fuel cell",

abstract = "An ethyl imidazolium-functionalized poly(arylene ether sulfone) (EI-PES) block copolymer was prepared as a novel anion exchange membrane. The EI-PES polymer was synthesized by polycondensation between the F- and OH-terminated oligomers, followed by benzylic bromination and imidazolium functionalization (homogeneous functionalization). The quaternary ammonium-functionalized PES (QA-PES) was also prepared by heterogeneous functionalization, and the properties were compared with EI-PES. The membrane obtained from EI-PES showed a well-defined phase separated morphology between hydrophobic and hydrophilic ionic units of the block copolymer. An IEC of 1.45 meq/g with hydroxide conductivity of 0.03 S/cm at r.t. was observed for EI-PES. The EI-PES membrane also displayed excellent dimensional, thermal, mechanical and chemical stabilities.",

keywords = "Anion exchange membrane, Block copolymer, Imidazolium-functionalized polymer",

author = "Rao, {Anil H.N.} and Thankamony, {Roshni Lilly} and Kim, {Hyoung Juhn} and Sukwoo Nam and Kim, {Tae Hyun}",

note = "Funding Information: This work was supported by a National Research Foundation of Korea (NRF) grant, funded by the Korean government (MEST) ( 2011-0022859 ). Part of this work was also supported by a research grant from the Korea Institute of Science and Technology as a part of the “E-BANK” program in 2012. ",

year = "2013",

month = jan,

day = "8",

doi = "10.1016/j.polymer.2012.11.023",

language = "English",

volume = "54",

pages = "111--119",

journal = "Polymer (United Kingdom)",

issn = "0032-3861",

publisher = "Elsevier BV",

number = "1",

}

TY - JOUR

T1 - Imidazolium-functionalized poly(arylene ether sulfone) block copolymer as an anion exchange membrane for alkaline fuel cell

AU - Rao, Anil H.N.

AU - Thankamony, Roshni Lilly

AU - Kim, Hyoung Juhn

AU - Nam, Sukwoo

AU - Kim, Tae Hyun

N1 - Funding Information: This work was supported by a National Research Foundation of Korea (NRF) grant, funded by the Korean government (MEST) ( 2011-0022859 ). Part of this work was also supported by a research grant from the Korea Institute of Science and Technology as a part of the “E-BANK” program in 2012.

PY - 2013/1/8

Y1 - 2013/1/8

N2 - An ethyl imidazolium-functionalized poly(arylene ether sulfone) (EI-PES) block copolymer was prepared as a novel anion exchange membrane. The EI-PES polymer was synthesized by polycondensation between the F- and OH-terminated oligomers, followed by benzylic bromination and imidazolium functionalization (homogeneous functionalization). The quaternary ammonium-functionalized PES (QA-PES) was also prepared by heterogeneous functionalization, and the properties were compared with EI-PES. The membrane obtained from EI-PES showed a well-defined phase separated morphology between hydrophobic and hydrophilic ionic units of the block copolymer. An IEC of 1.45 meq/g with hydroxide conductivity of 0.03 S/cm at r.t. was observed for EI-PES. The EI-PES membrane also displayed excellent dimensional, thermal, mechanical and chemical stabilities.

AB - An ethyl imidazolium-functionalized poly(arylene ether sulfone) (EI-PES) block copolymer was prepared as a novel anion exchange membrane. The EI-PES polymer was synthesized by polycondensation between the F- and OH-terminated oligomers, followed by benzylic bromination and imidazolium functionalization (homogeneous functionalization). The quaternary ammonium-functionalized PES (QA-PES) was also prepared by heterogeneous functionalization, and the properties were compared with EI-PES. The membrane obtained from EI-PES showed a well-defined phase separated morphology between hydrophobic and hydrophilic ionic units of the block copolymer. An IEC of 1.45 meq/g with hydroxide conductivity of 0.03 S/cm at r.t. was observed for EI-PES. The EI-PES membrane also displayed excellent dimensional, thermal, mechanical and chemical stabilities.

KW - Anion exchange membrane

KW - Block copolymer

KW - Imidazolium-functionalized polymer

UR - http://www.scopus.com/inward/record.url?scp=84871929145&partnerID=8YFLogxK

U2 - 10.1016/j.polymer.2012.11.023

DO - 10.1016/j.polymer.2012.11.023

M3 - Article

AN - SCOPUS:84871929145

SN - 0032-3861

VL - 54

SP - 111

EP - 119

JO - Polymer (United Kingdom)

JF - Polymer (United Kingdom)

IS - 1

ER -

Imidazolium-functionalized poly(arylene ether sulfone) block copolymer as an anion exchange membrane for alkaline fuel cell

Abstract

Keywords

ASJC Scopus subject areas

Access to Document

Other files and links

Fingerprint

Cite this