Zheng Penglun, Liu Quanyi, Li Zekun, Wang Donghui, Liu Xiaobo
College of Civil Aviation Safety Engineering, Civil Aviation Flight University of China, Guanghan 618307, China.
Research Branch of Advanced Functional Materials, School of Materials and Energy, University of Electronic Science and Technology of China, Chengdu 610054, China.
Polymers (Basel). 2019 Jun 3;11(6):964. doi: 10.3390/polym11060964.
In order to investigate the effect of crosslinking degree on the water uptake, swelling ratio, and methanol permeability of sulfonated poly(aryl ether nitrile)s (SPENs), the molar content of sulfonated group in bisphenol monomer is fixed at 60% in this work. The properties of sulfonated poly (aryl ether nitrile) with different crosslinking degrees are studied by changing the content of propenyl group in sulfonated poly (aryl ether nitrile)s. The cross-linking reaction of the propenyl groups in the SPENs is cured at 230 °C. All the results show that this method is an effective way to improve the water uptake, swelling ratio, and methanol permeability to meet the application requirements of the SPENs membranes as proton exchange membranes in fuel cells.
为了研究交联度对磺化聚芳醚腈（SPENs）的吸水率、溶胀率和甲醇渗透率的影响，本工作中双酚单体中磺化基团的摩尔含量固定为60%。通过改变磺化聚芳醚腈中丙烯基的含量，研究了不同交联度的磺化聚芳醚腈的性能。SPENs中丙烯基的交联反应在230℃下固化。所有结果表明，该方法是提高吸水率、溶胀率和甲醇渗透率以满足SPENs膜作为燃料电池质子交换膜应用要求的有效途径。
