Nanomaterials 2014, 4(1), 1-18; doi:10.3390/nano4010001
Article

Composite Electrolyte Membranes from Partially Fluorinated Polymer and Hyperbranched, Sulfonated Polysulfone

Ian Wark Research Institute, University of South Australia, Mawson Lakes Campus, 5095 Adelaide, Australia
* Author to whom correspondence should be addressed.
Received: 29 October 2013; in revised form: 13 December 2013 / Accepted: 13 December 2013 / Published: 23 December 2013
(This article belongs to the Special Issue Nanomaterials in Energy Conversion and Storage)
PDF Full-text Download PDF Full-Text [1899 KB, Updated Version, uploaded 30 December 2013 17:22 CET]
The original version is still available [1903 KB, uploaded 23 December 2013 09:52 CET]
Abstract: 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 cm1 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.
Keywords: membrane; fluoropolymer; polymer electrolyte; hyperbranched polysulfone; polymer blends

Article Statistics

Load and display the download statistics.

Citations to this Article

Cite This Article

MDPI and ACS Style

Subianto, S.; Choudhury, N.R.; Dutta, N. Composite Electrolyte Membranes from Partially Fluorinated Polymer and Hyperbranched, Sulfonated Polysulfone. Nanomaterials 2014, 4, 1-18.

AMA Style

Subianto S, Choudhury NR, Dutta N. Composite Electrolyte Membranes from Partially Fluorinated Polymer and Hyperbranched, Sulfonated Polysulfone. Nanomaterials. 2014; 4(1):1-18.

Chicago/Turabian Style

Subianto, Surya; Choudhury, Namita R.; Dutta, Naba. 2014. "Composite Electrolyte Membranes from Partially Fluorinated Polymer and Hyperbranched, Sulfonated Polysulfone." Nanomaterials 4, no. 1: 1-18.

Nanomaterials EISSN 2079-4991 Published by MDPI AG, Basel, Switzerland RSS E-Mail Table of Contents Alert