Ion conduction and water transport in polyphosphazene-based multilayers

Avni A. Argun; J. Nathan Ashcraft; Marie K. Herring; David K.Y. Lee; Harry R. Allcock; Paula T. Hammond

doi:10.1021/cm902769m

Ion conduction and water transport in polyphosphazene-based multilayers

Avni A. Argun, J. Nathan Ashcraft, Marie K. Herring, David K.Y. Lee, Harry R. Allcock, Paula T. Hammond

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

17 Scopus citations

Abstract

Layer-by-layer (LbL) assembled films of poly[bis(methoxyethoxyethoxy) phosphazene] (MEEP) and poly (acrylic acid) (PAA) are demonstrated by utilizing the hydrogen bonding between these two polymers. These films show controlled thickness growth, high ionic conductivity, and excellent hydrolytic stability. The ionic conductivity of these films is studied by changing the assembly pH of initial polymer solutions and thereby controlling the hydrogen bonding characteristics. MEEP/PAA LbL films assembled at higher pH values have enhanced water uptake and transport properties, which play a key role in increasing ion transport within the films. At fully humidified conditions, the ionic conductivity of MEEP/PAA is 7 × 10^-4 S cm^-1, more than 1 order of magnitude higher than previously studied hydrogen-bonded LbL systems. Finally, free-standing films are isolated from lowenergy surface substrates, which allows for bulk characterization of these thin films.

Original language	English (US)
Pages (from-to)	226-232
Number of pages	7
Journal	Chemistry of Materials
Volume	22
Issue number	1
DOIs	https://doi.org/10.1021/cm902769m
State	Published - Jan 12 2010

All Science Journal Classification (ASJC) codes

General Chemistry
General Chemical Engineering
Materials Chemistry

Access to Document

10.1021/cm902769m

Cite this

@article{b0636f24d16043eb8aca985cde2d2e02,

title = "Ion conduction and water transport in polyphosphazene-based multilayers",

abstract = "Layer-by-layer (LbL) assembled films of poly[bis(methoxyethoxyethoxy) phosphazene] (MEEP) and poly (acrylic acid) (PAA) are demonstrated by utilizing the hydrogen bonding between these two polymers. These films show controlled thickness growth, high ionic conductivity, and excellent hydrolytic stability. The ionic conductivity of these films is studied by changing the assembly pH of initial polymer solutions and thereby controlling the hydrogen bonding characteristics. MEEP/PAA LbL films assembled at higher pH values have enhanced water uptake and transport properties, which play a key role in increasing ion transport within the films. At fully humidified conditions, the ionic conductivity of MEEP/PAA is 7 × 10-4 S cm-1, more than 1 order of magnitude higher than previously studied hydrogen-bonded LbL systems. Finally, free-standing films are isolated from lowenergy surface substrates, which allows for bulk characterization of these thin films.",

author = "Argun, {Avni A.} and Ashcraft, {J. Nathan} and Herring, {Marie K.} and Lee, {David K.Y.} and Allcock, {Harry R.} and Hammond, {Paula T.}",

year = "2010",

month = jan,

day = "12",

doi = "10.1021/cm902769m",

language = "English (US)",

volume = "22",

pages = "226--232",

journal = "Chemistry of Materials",

issn = "0897-4756",

publisher = "American Chemical Society",

number = "1",

}

TY - JOUR

T1 - Ion conduction and water transport in polyphosphazene-based multilayers

AU - Argun, Avni A.

AU - Ashcraft, J. Nathan

AU - Herring, Marie K.

AU - Lee, David K.Y.

AU - Allcock, Harry R.

AU - Hammond, Paula T.

PY - 2010/1/12

Y1 - 2010/1/12

N2 - Layer-by-layer (LbL) assembled films of poly[bis(methoxyethoxyethoxy) phosphazene] (MEEP) and poly (acrylic acid) (PAA) are demonstrated by utilizing the hydrogen bonding between these two polymers. These films show controlled thickness growth, high ionic conductivity, and excellent hydrolytic stability. The ionic conductivity of these films is studied by changing the assembly pH of initial polymer solutions and thereby controlling the hydrogen bonding characteristics. MEEP/PAA LbL films assembled at higher pH values have enhanced water uptake and transport properties, which play a key role in increasing ion transport within the films. At fully humidified conditions, the ionic conductivity of MEEP/PAA is 7 × 10-4 S cm-1, more than 1 order of magnitude higher than previously studied hydrogen-bonded LbL systems. Finally, free-standing films are isolated from lowenergy surface substrates, which allows for bulk characterization of these thin films.

AB - Layer-by-layer (LbL) assembled films of poly[bis(methoxyethoxyethoxy) phosphazene] (MEEP) and poly (acrylic acid) (PAA) are demonstrated by utilizing the hydrogen bonding between these two polymers. These films show controlled thickness growth, high ionic conductivity, and excellent hydrolytic stability. The ionic conductivity of these films is studied by changing the assembly pH of initial polymer solutions and thereby controlling the hydrogen bonding characteristics. MEEP/PAA LbL films assembled at higher pH values have enhanced water uptake and transport properties, which play a key role in increasing ion transport within the films. At fully humidified conditions, the ionic conductivity of MEEP/PAA is 7 × 10-4 S cm-1, more than 1 order of magnitude higher than previously studied hydrogen-bonded LbL systems. Finally, free-standing films are isolated from lowenergy surface substrates, which allows for bulk characterization of these thin films.

UR - http://www.scopus.com/inward/record.url?scp=74949112423&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=74949112423&partnerID=8YFLogxK

U2 - 10.1021/cm902769m

DO - 10.1021/cm902769m

M3 - Article

AN - SCOPUS:74949112423

SN - 0897-4756

VL - 22

SP - 226

EP - 232

JO - Chemistry of Materials

JF - Chemistry of Materials

IS - 1

ER -

Ion conduction and water transport in polyphosphazene-based multilayers

Abstract

All Science Journal Classification (ASJC) codes

Access to Document

Other files and links

Fingerprint

Cite this