Preparation and properties of ion exchange membranes for PEMFC with sulfonic and carboxylic acid groups based on polynorbornenes
作者： Chao Wang , Zhiming Feng , Yang Zhao , Xue Li , Weiwei Li
DOI: 10.1016/J.IJHYDENE.2017.09.168
关键词: Polymer chemistry 、 Chemistry 、 Thermal stability 、 Carboxylic acid 、 Membrane 、 Bifunctional 、 Norbornene 、 Sulfonic acid 、 Polymerization 、 ROMP
摘要: Abstract Bifunctional groups proton exchange membranes (PEMs) with sulfonic and carboxylic acid were prepared via ring-opening metathesis polymerization (ROMP) based on norbornene derivatives. The the introduced into polymer chains in form of sulfonyl chloride ester separately. Because introduction these two groups, not only greatly improve conductivity of PEMs, but also their mechanical performance thermal stability. When highest bifunctional PEMs is 123.96 mS/cm, its higher than that Nafion® 117 at 25 °C.
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