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Composite electrolyte membranes from partially fluorinated polymer and hyperbranched, sulfonated polysulfone

Subianto, Surya, Choudhury, Namita Roy and Dutta, Naba 2013, Composite electrolyte membranes from partially fluorinated polymer and hyperbranched, sulfonated polysulfone, Nanomaterials, vol. 4, no. 1, Nanomaterials in Energy Conversion and Storage, pp. 1-18, doi: 10.3390/nano4010001.

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Title Composite electrolyte membranes from partially fluorinated polymer and hyperbranched, sulfonated polysulfone
Author(s) Subianto, SuryaORCID iD for Subianto, Surya orcid.org/0000-0002-5711-3693
Choudhury, Namita Roy
Dutta, Naba
Journal name Nanomaterials
Volume number 4
Issue number 1
Season Nanomaterials in Energy Conversion and Storage
Start page 1
End page 18
Total pages 18
Publisher MDPI AG
Place of publication Basel, Switzerland
Publication date 2013-12
ISSN 2079-4991
Keyword(s) membrane
fluoropolymer
polymer electrolyte
hyperbranched polysulfone
polymer blends
Summary Macromolecular modification of poly(vinylidene fluoride-co-hexafluoropropylene) (PVDF) was done with various proportions of sulfonic acid terminated, hyperbranched polysulfone (HPSU) with a view to prepare ion conducting membranes. The PVDF-co-HFP was first chemically modified by dehydrofluorination and chlorosulfonation in order to make the membrane more hydrophilic as well as to introduce unsaturation, which would allow crosslinking of the PVDF-co-HFP matrix to improve the stability of the membrane. The modified samples were characterized for ion exchange capacity, morphology, and performance. The HPSU modified S-PVDF membrane shows good stability and ionic conductivity of 5.1 mS cm−1 at 80 °C and 100% RH for blends containing 20% HPSU, which is higher than the literature values for equivalent blend membranes using Nafion. SEM analysis of the blend membranes containing 15% or more HPSU shows the presence of spherical domains with a size range of 300–800 nm within the membranes, which are believed to be the HPSU-rich area.
Language eng
DOI 10.3390/nano4010001
Field of Research 091209 Polymers and Plastics
Socio Economic Objective 970110 Expanding Knowledge in Technology
HERDC Research category C1.1 Refereed article in a scholarly journal
Grant ID Australian Research Council, ARC for funding of this research work through Discovery and Linkage programs
Copyright notice ©2013, The Authors
Free to Read? Yes
Use Rights Creative Commons Attribution licence
Persistent URL http://hdl.handle.net/10536/DRO/DU:30103364

Document type: Journal Article
Collections: Institute for Frontier Materials
Open Access Collection
GTP Research
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Every reasonable effort has been made to ensure that permission has been obtained for items included in DRO. If you believe that your rights have been infringed by this repository, please contact drosupport@deakin.edu.au.