From solutions to membranes

Structure studies of sulfonated polyphenylene ionomers

Lilin He, Cy H. Fujimoto, Christopher J Cornelius, Dvora Perahia

Research output: Contribution to journalArticle

21 Citations (Scopus)

Abstract

The structure of rigid sulfonated polyphenylene ionomers was investigated in bulk and in dilute organic solutions. The uniqueness of polyphenylene ionomers lies in their rigid backbone which prevents folding and therefore affects the partition into hydrophilic ionic domains and hydrophobic regions. This segregation dominates the structure of flexible ionic polymers. Small-angle neutron scattering studies of these ionomers have demonstrated that bundles of polymer molecules are formed in dilute organic solutions. This clustered building block persists in bulk dry and hydrated states of the ionomers. Hydration of these ionomers membranes results in segregation to hydrophilic and hydrophobic regions, where diffusion into interstitial spaces between the bundles of sulfonated and unsulfonated domains takes place followed by rearrangements of domains to yield locally bicontinuous regions. Only at very high sulfonation levels are fully bicontinues phases formed. With controlling the degree of continuity, the stiffness of the backbone offers a means to tune the transport in ionic polymers.

Original languageEnglish (US)
Pages (from-to)7084-7090
Number of pages7
JournalMacromolecules
Volume42
Issue number18
DOIs
StatePublished - Sep 22 2009

Fingerprint

Membrane structures
Ionomers
Polymers
Sulfonation
Neutron scattering
Hydration
Stiffness
polyphenylene sulfide
Membranes
Molecules

ASJC Scopus subject areas

  • Organic Chemistry
  • Materials Chemistry
  • Polymers and Plastics
  • Inorganic Chemistry

Cite this

From solutions to membranes : Structure studies of sulfonated polyphenylene ionomers. / He, Lilin; Fujimoto, Cy H.; Cornelius, Christopher J; Perahia, Dvora.

In: Macromolecules, Vol. 42, No. 18, 22.09.2009, p. 7084-7090.

Research output: Contribution to journalArticle

He, Lilin ; Fujimoto, Cy H. ; Cornelius, Christopher J ; Perahia, Dvora. / From solutions to membranes : Structure studies of sulfonated polyphenylene ionomers. In: Macromolecules. 2009 ; Vol. 42, No. 18. pp. 7084-7090.
@article{6386d0feda6d411db497ed0b28a21936,
title = "From solutions to membranes: Structure studies of sulfonated polyphenylene ionomers",
abstract = "The structure of rigid sulfonated polyphenylene ionomers was investigated in bulk and in dilute organic solutions. The uniqueness of polyphenylene ionomers lies in their rigid backbone which prevents folding and therefore affects the partition into hydrophilic ionic domains and hydrophobic regions. This segregation dominates the structure of flexible ionic polymers. Small-angle neutron scattering studies of these ionomers have demonstrated that bundles of polymer molecules are formed in dilute organic solutions. This clustered building block persists in bulk dry and hydrated states of the ionomers. Hydration of these ionomers membranes results in segregation to hydrophilic and hydrophobic regions, where diffusion into interstitial spaces between the bundles of sulfonated and unsulfonated domains takes place followed by rearrangements of domains to yield locally bicontinuous regions. Only at very high sulfonation levels are fully bicontinues phases formed. With controlling the degree of continuity, the stiffness of the backbone offers a means to tune the transport in ionic polymers.",
author = "Lilin He and Fujimoto, {Cy H.} and Cornelius, {Christopher J} and Dvora Perahia",
year = "2009",
month = "9",
day = "22",
doi = "10.1021/ma900314g",
language = "English (US)",
volume = "42",
pages = "7084--7090",
journal = "Macromolecules",
issn = "0024-9297",
publisher = "American Chemical Society",
number = "18",

}

TY - JOUR

T1 - From solutions to membranes

T2 - Structure studies of sulfonated polyphenylene ionomers

AU - He, Lilin

AU - Fujimoto, Cy H.

AU - Cornelius, Christopher J

AU - Perahia, Dvora

PY - 2009/9/22

Y1 - 2009/9/22

N2 - The structure of rigid sulfonated polyphenylene ionomers was investigated in bulk and in dilute organic solutions. The uniqueness of polyphenylene ionomers lies in their rigid backbone which prevents folding and therefore affects the partition into hydrophilic ionic domains and hydrophobic regions. This segregation dominates the structure of flexible ionic polymers. Small-angle neutron scattering studies of these ionomers have demonstrated that bundles of polymer molecules are formed in dilute organic solutions. This clustered building block persists in bulk dry and hydrated states of the ionomers. Hydration of these ionomers membranes results in segregation to hydrophilic and hydrophobic regions, where diffusion into interstitial spaces between the bundles of sulfonated and unsulfonated domains takes place followed by rearrangements of domains to yield locally bicontinuous regions. Only at very high sulfonation levels are fully bicontinues phases formed. With controlling the degree of continuity, the stiffness of the backbone offers a means to tune the transport in ionic polymers.

AB - The structure of rigid sulfonated polyphenylene ionomers was investigated in bulk and in dilute organic solutions. The uniqueness of polyphenylene ionomers lies in their rigid backbone which prevents folding and therefore affects the partition into hydrophilic ionic domains and hydrophobic regions. This segregation dominates the structure of flexible ionic polymers. Small-angle neutron scattering studies of these ionomers have demonstrated that bundles of polymer molecules are formed in dilute organic solutions. This clustered building block persists in bulk dry and hydrated states of the ionomers. Hydration of these ionomers membranes results in segregation to hydrophilic and hydrophobic regions, where diffusion into interstitial spaces between the bundles of sulfonated and unsulfonated domains takes place followed by rearrangements of domains to yield locally bicontinuous regions. Only at very high sulfonation levels are fully bicontinues phases formed. With controlling the degree of continuity, the stiffness of the backbone offers a means to tune the transport in ionic polymers.

UR - http://www.scopus.com/inward/record.url?scp=70349904934&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=70349904934&partnerID=8YFLogxK

U2 - 10.1021/ma900314g

DO - 10.1021/ma900314g

M3 - Article

VL - 42

SP - 7084

EP - 7090

JO - Macromolecules

JF - Macromolecules

SN - 0024-9297

IS - 18

ER -