Synthesis and properties of sulfonated poly (phthalazinone ether sulfone) containing pendant phenyl groups as proton exchange membrane materials
Year: 2013
Type: article
Abstract: A series of poly(phthalazinone ether sulfone)containing pendant phenyl groups(PPES-P)were synthesized from 4-(3-phenyl-4-hydroxyphenyl)-2,3-phthalazin-1-one,4-(4-hydroxyphenyl)-2,3-phthalazin-1-one and 4,4'-dichlorodiphenyl sulfone.Sulfonated poly(phthalazinone ether sulfone)containing pendant phenyl groups(SPPES-P)were prepared from PPES-P with concentrated sulfuric acid as the sulfonating agent.The ion exchange capacity(IEC)of SPPES-P was obtained by titration method and theoretical calculation.The chemical structure of PPES-P and SPPES-P were characterized with 1H NMR and FT-IR.SPPES-P proton exchange membranes with different IEC values were prepared.SPPES-P membranes exhibited moderate water uptake and low swelling.SPPES-P membranes showed high oxidative stability and low methanol permeability.The methanol permeability values of SPPES-P membranes ranged from 7.34×10-8cm2/s to 1.2×10-7cm2/s,which were much lower than that of Nafion 117 membrane(1.04×10-6cm2/s)under the same test condition.The proton conductivities of SPPES-P membranes increased with the increase of IEC and temperature.The proton conductivity of SPPES-P100 membrane reached 1.4×10-2 S/cm at 95℃.
Author: Zhang Shou-ha
Institution: Dalian University of Technology
Language: English
Subfield: Electrical and Electronic Engineering
Field: Engineering
Domain: Physical Sciences
Open Access status: gold
Estimated APC paid: $3,258
OpenAlex ID: W2388758055