# IMPROVED PROPERTIES OF SULFONATED OCTAPHENYL POLYHEDDRAL SILSEQUIOXANE CROSSLINK WITH HIGHLY SULFONATED POLYPHENYLSULFONE AS PROTON EXCHANGE MEMBRANE

https://mdr.nims.go.jp/datasets/aaf54676-194a-4bdd-9693-b899cb155c48

## File

- [JSSEC_Nor2020_Article_CSPPSU-SPOSS.pdf](https://mdr.nims.go.jp/filesets/675b082e-421b-4ea0-b705-50211c7e08e2/download) ([Detail](https://mdr.nims.go.jp/filesets/675b082e-421b-4ea0-b705-50211c7e08e2.md))

## Id

aaf54676-194a-4bdd-9693-b899cb155c48

## Local identifier



## Visibility

open_to_public

## State

published

## Created at

2023-03-29T04:03:12.708256Z

## Updated at

2024-01-05T13:13:06.011915Z

## Published at

2023-03-30T00:38:07.120239Z

## Doi



## First published url

https://doi.org/10.1007/s10008-020-04594-2

## Date published

2020-05-04

## Recorded date published

2020-5

## Resource type

journal_article

## Manuscript type

vor

## Collection



## Title

- title: IMPROVED PROPERTIES OF SULFONATED OCTAPHENYL POLYHEDDRAL SILSEQUIOXANE CROSSLINK
    WITH HIGHLY SULFONATED POLYPHENYLSULFONE AS PROTON EXCHANGE MEMBRANE
  title_type: original
  lang: en

## Description

- description: This study explored the concept of improving the properties of the
    crosslinked membrane using a 1.5 nm closed cage octaphenyl polyhedral oligosilsesquioxane
    (POSS) form of nanosilica carrying the sulfonic acid group. POSS functioned with
    SO3H groups (SPOSS) at 0, 1, 2, and 5 wt. % were crosslinked with water-soluble
    sulfonated polyphenylsulfone (SPPSU) polymer. The crosslinking between SPPSU and
    SPOSS was accomplished through the interchain condensation of sulfonic acid functionalities
    initiated by thermal curing treatment.  In this study, a covalently crosslinked
    membrane was obtained under stepwise thermal curing from 80°C to 180°C. Upon curing
    at 180°C, the SPPSU-SPOSS showed considerable improvement on the membrane proton
    conductivity under low and high RH (%) conditions compared to the pristine SPPSU
    membrane. The membrane proton conductivity shows similar patterns with the membrane
    water uptake as the presence of water greatly influences the crosslinked membrane.
    The proton conductivity of the SPPSU crosslinked with 1 wt. % SPOSS that conducted
    under low RH (%) and at elevated temperature exhibited about six times higher
    of proton conductivity as compared to pristine SPPSU membrane. However, increasing
    the loading of SPOSS beyond 1 wt. % significantly dropped the membrane water uptake
    and proton conductivity due to SPOSS aggregation that blocking the hydrophilic
    domains in the polymer matrix. The results indicated that the incorporation of
    SPOSS in the SPPSU membrane by curing at 180°C exhibit improvement on membrane
    water management and proton conductivity as compared to the pristine SPPSU membrane.
  description_type: abstract
  lang: eng

## Creator

- name: Nor Azureen Mohamad Nor
  role: author
- name: Juhana Jaafar
  role: author
- name: Je-Deok Kim
  role: author
  orcid: https://orcid.org/0000-0003-4301-1044
  organization: National Institute for Materials Science
  ror: https://ror.org/026v1ze26

## Contact agent



## Publisher

organization: Springer Science and Business Media LLC

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## Keyword

- subject: Sulfonated PPSU
  schema: not_defined
- subject: Proton exchange membrane
  schema: not_defined
- subject: Sulfonated POSS
  schema: not_defined
- subject: Cross-linking
  schema: not_defined
- subject: Fuel cell
  schema: not_defined

## Rights

- identifier: https://creativecommons.org/licenses/by/4.0/

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## Embargo



## Journal

- title: JOURNAL OF SOLID STATE ELECTROCHEMISTRY
  issn: '14328488'
  volume: '24'
  issue: '5'
  start_page: 1185
  end_page: 1195

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## Fileset

- id: 675b082e-421b-4ea0-b705-50211c7e08e2
  filename: JSSEC_Nor2020_Article_CSPPSU-SPOSS.pdf
  content_type: application/pdf
  size: 1048339
  md5: cf0720df2197e95d51a1e8fc734ac6f0

## Thumbnail

fileset_id: 675b082e-421b-4ea0-b705-50211c7e08e2
filename: JSSEC_Nor2020_Article_CSPPSU-SPOSS.pdf