Citation: QIAO Zongwen, CHEN Tao. Properties of Side Chain Type Sulfonated Polysulfone Proton Exchange Membranes for Fuel Cells[J]. Chinese Journal of Applied Chemistry, ;2019, 36(8): 917-923. doi: 10.11944/j.issn.1000-0518.2019.08.190013 shu

Properties of Side Chain Type Sulfonated Polysulfone Proton Exchange Membranes for Fuel Cells

QIAO Zongwen ^a,, ,
CHEN Tao ^b

a.
Department of Chemical Engineering, Shaanxi Institute of Technology, Xi'an 710300, China
b.
Department of Chemical Engineering, North University of China, Taiyuan 030051, China

Corresponding author: QIAO Zongwen, qiaozongwen@126.com
Received Date: 14 January 2019
Revised Date: 22 February 2019
Accepted Date: 17 April 2019

Fund Project: Youth Talent Promotion Plan of Xi′an Association for Science and Technology and Science Research Project of Shaanxi Institute of Technology Gfy18-04Natural Science Special Project of Shaanxi Education Department 18JK0069Supported by Natural Science Special Project of Shaanxi Education Department(No.18JK0069), Youth Talent Promotion Plan of Xi′an Association for Science and Technology and Science Research Project of Shaanxi Institute of Technology(No.Gfy18-04)

Figures(6)

Chloromethylated polysulfones(CPS) was used as the precursors, and side chain type sulfonted polysulfone(PS-BDS) was obtained using disodium 1, 2-dihydroxybenzene-3, 5-disufonate as nucleophilic reagents. The corresponding proton exchange membranes(PEMs) were produced using solution casting method. The relationship between the temperature and properties of PEMs was studied. Since they have characteristic micro-phase separation structures by locating hydrophilic sulfonic acid group far away from hydrophobic main chain of PS, PEMs have excellent dimensional stability at high water sorption ratio. With the increase of temperature, the proton conductivity, the swelling ratio and the water sorption ratio increase. PS-BDS PEMs have comprehensive size stability and methanol permeability. The swelling ratio of PS-BDS-4 PEM is only 22.1% at 25℃ and 55.0% at 85℃. The methanol permeability is 9.94×10^-7 cm²/s at 25℃, lower than those of commercial Nafion115(16.8×10^-7 cm²/s) and Nafion117(23.8×10^-7 cm²/s) PEMs.
- polysulfone,
- exchange membranesphase separation,
- dimensional stability,
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沈阳化工大学材料科学与工程学院沈阳 110142