What is it about?
Alkaline anion exchange membrane with semi-interpenetrating polymer network (s-IPN) was constituted based upon quaternized poly(butyl acrylate-co-vinylbenzyl chloride) (QPBV) and poly(vinylidene fluoride-co-hexafluoropropylene) [P(VDF-HFP)]. The QPBV was synthesized via the free radical copolymerization, followed by quaternization with N-methylimidazole. The s-IPN system was constituted by melting blend of QPBV and P(VDF-HFP), and then crosslinking of P(VDF-HFP).
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Why is it important?
Ion exchange capacity, water uptake, mechanical performance, and thermal stability of these membranes were characterized. TEM showed that alkaline anion exchange membrane exhibited s-IPN morphology with microphase separation. The fabricated s-IPN membrane exhibited hydroxide ion conductivity up to 15 mS cm−1 at 25 °C and a maximum DMFC power density of 46.55 mW cm−2 at a load current density of 98 mA cm−2 at 30 °C.
Perspectives
The study is important because the alkaline anion exchange membrane is an important component of fuel cells, and its research will promote further development of the fuel cell industry.
chen bingxin
Hanshan Normal University
Read the Original
This page is a summary of: Preparation and properties of alkaline anion exchange membrane with semi-interpenetrating polymer networks based on poly(vinylidene fluoride-co
-hexafluoropropylene), Journal of Applied Polymer Science, September 2017, Wiley,
DOI: 10.1002/app.45775.
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