High-strain air-working soft transducers produced from nanostructured block copolymer ionomer/silicate/ionic liquid nanocomposite membranes

Jang Woo Lee, Seunggun Yu, Soon Man Hong, Chong Min Koo

Research output: Contribution to journalArticle

27 Citations (Scopus)

Abstract

The present work demonstrates that nanostructured middle-block sulfonated styrenic pentablock copolymer ionomer (SSPB)/sulfonated montmorillonite (s-MMT) nanocomposite membranes, incorporating bulky imidazolium ionic liquid (IL), act as novel polymer electrolytes for air-working ionic polymer-metal composite (IPMC) actuators. The microphase-separated big-size ionic domains of the SSPB on the scale of several tens of nanometers and the role of s-MMT as an ionic bridge between the ion channels resulted in not only unexpectedly larger ion conductivity, larger air-working bending displacement and faster bending rate, without conventional IPMC drawbacks, including back relaxation and a sacrifice of mechanical strength, but also higher energy efficiency actuation than Nafion. Interestingly, the bending displacement, bending rate, and charge-specific displacement of the nanocomposite IPMC increased with the increase in bulkiness of the ILs because of the strong ion pumping effect of the bulky immidazolium cations in the size-matched big ion channels of the nanocomposite membrane.

Original languageEnglish
Pages (from-to)3784-3793
Number of pages10
JournalJournal of Materials Chemistry C
Volume1
Issue number24
DOIs
Publication statusPublished - 2013 Jun 28
Externally publishedYes

Fingerprint

Ionic Liquids
Silicates
Ionomers
Ionic liquids
Block copolymers
Transducers
Nanocomposites
Polymers
Membranes
Bentonite
Metals
Air
Clay minerals
Ion Channels
Composite materials
Ions
Copolymers
Heavy ions
Electrolytes
Strength of materials

ASJC Scopus subject areas

  • Chemistry(all)
  • Materials Chemistry

Cite this

High-strain air-working soft transducers produced from nanostructured block copolymer ionomer/silicate/ionic liquid nanocomposite membranes. / Lee, Jang Woo; Yu, Seunggun; Hong, Soon Man; Koo, Chong Min.

In: Journal of Materials Chemistry C, Vol. 1, No. 24, 28.06.2013, p. 3784-3793.

Research output: Contribution to journalArticle

@article{8531dd7acbf44fc9965fa20aa74d39c5,
title = "High-strain air-working soft transducers produced from nanostructured block copolymer ionomer/silicate/ionic liquid nanocomposite membranes",
abstract = "The present work demonstrates that nanostructured middle-block sulfonated styrenic pentablock copolymer ionomer (SSPB)/sulfonated montmorillonite (s-MMT) nanocomposite membranes, incorporating bulky imidazolium ionic liquid (IL), act as novel polymer electrolytes for air-working ionic polymer-metal composite (IPMC) actuators. The microphase-separated big-size ionic domains of the SSPB on the scale of several tens of nanometers and the role of s-MMT as an ionic bridge between the ion channels resulted in not only unexpectedly larger ion conductivity, larger air-working bending displacement and faster bending rate, without conventional IPMC drawbacks, including back relaxation and a sacrifice of mechanical strength, but also higher energy efficiency actuation than Nafion. Interestingly, the bending displacement, bending rate, and charge-specific displacement of the nanocomposite IPMC increased with the increase in bulkiness of the ILs because of the strong ion pumping effect of the bulky immidazolium cations in the size-matched big ion channels of the nanocomposite membrane.",
author = "Lee, {Jang Woo} and Seunggun Yu and Hong, {Soon Man} and Koo, {Chong Min}",
year = "2013",
month = "6",
day = "28",
doi = "10.1039/c3tc30414k",
language = "English",
volume = "1",
pages = "3784--3793",
journal = "Journal of Materials Chemistry C",
issn = "2050-7526",
publisher = "Royal Society of Chemistry",
number = "24",

}

TY - JOUR

T1 - High-strain air-working soft transducers produced from nanostructured block copolymer ionomer/silicate/ionic liquid nanocomposite membranes

AU - Lee, Jang Woo

AU - Yu, Seunggun

AU - Hong, Soon Man

AU - Koo, Chong Min

PY - 2013/6/28

Y1 - 2013/6/28

N2 - The present work demonstrates that nanostructured middle-block sulfonated styrenic pentablock copolymer ionomer (SSPB)/sulfonated montmorillonite (s-MMT) nanocomposite membranes, incorporating bulky imidazolium ionic liquid (IL), act as novel polymer electrolytes for air-working ionic polymer-metal composite (IPMC) actuators. The microphase-separated big-size ionic domains of the SSPB on the scale of several tens of nanometers and the role of s-MMT as an ionic bridge between the ion channels resulted in not only unexpectedly larger ion conductivity, larger air-working bending displacement and faster bending rate, without conventional IPMC drawbacks, including back relaxation and a sacrifice of mechanical strength, but also higher energy efficiency actuation than Nafion. Interestingly, the bending displacement, bending rate, and charge-specific displacement of the nanocomposite IPMC increased with the increase in bulkiness of the ILs because of the strong ion pumping effect of the bulky immidazolium cations in the size-matched big ion channels of the nanocomposite membrane.

AB - The present work demonstrates that nanostructured middle-block sulfonated styrenic pentablock copolymer ionomer (SSPB)/sulfonated montmorillonite (s-MMT) nanocomposite membranes, incorporating bulky imidazolium ionic liquid (IL), act as novel polymer electrolytes for air-working ionic polymer-metal composite (IPMC) actuators. The microphase-separated big-size ionic domains of the SSPB on the scale of several tens of nanometers and the role of s-MMT as an ionic bridge between the ion channels resulted in not only unexpectedly larger ion conductivity, larger air-working bending displacement and faster bending rate, without conventional IPMC drawbacks, including back relaxation and a sacrifice of mechanical strength, but also higher energy efficiency actuation than Nafion. Interestingly, the bending displacement, bending rate, and charge-specific displacement of the nanocomposite IPMC increased with the increase in bulkiness of the ILs because of the strong ion pumping effect of the bulky immidazolium cations in the size-matched big ion channels of the nanocomposite membrane.

UR - http://www.scopus.com/inward/record.url?scp=84878679986&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84878679986&partnerID=8YFLogxK

U2 - 10.1039/c3tc30414k

DO - 10.1039/c3tc30414k

M3 - Article

AN - SCOPUS:84878679986

VL - 1

SP - 3784

EP - 3793

JO - Journal of Materials Chemistry C

JF - Journal of Materials Chemistry C

SN - 2050-7526

IS - 24

ER -