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在含氟聚芳醚侧链引入磺化萘酚基团,制备了一类侧链磺化型含氟聚芳醚(s SPFAE),采用溶液浇铸法制膜并对膜进行了表征和分析.制备的膜材料离子交换容量达到1.42~2.03 mmol/g,均透明柔韧,杨氏模量高于1.0 GPa,拉伸应变达到66%~105%.吸水性及膨胀性测试结果表明该系列膜具有较低的吸水率和良好的尺寸稳定性,在测试温度范围内(30~90℃)吸水率为21%~51%,尺寸变化率低于7%.s SPFAE膜具有良好的热稳定性及氧化稳定性,TGA测试中320~360℃时的重量损失低于5%,在Fenton溶液中80℃处理1 h后的失重率小于2%.同时,该系列膜表现出较高的电导率水平,如SPFAE-0.8膜(IEC=2.03 mmol/g)在80℃时电导率达到217 m S/cm.
A kind of side-chain sulfonated fluorine-containing poly (arylene ether) (s SPFAE) was prepared by introducing sulfonated naphthol groups into the side chain of fluorinated poly (aryl ether) s, and the films were prepared by solution casting and characterized. The ion exchange capacity of the membranes reached 1.42-2.03 mmol / g, all of them were transparent and flexible.The Young’s modulus was higher than 1.0 GPa and the tensile strain reached 66% -105% Low water absorption and good dimensional stability, the water absorption is 21% -51% and the dimensional change rate is less than 7% in the test temperature range (30-90 ℃) .S SPFAE film has good thermal stability and oxidation Stability, TGA test weight loss of less than 5% at 320 ~ 360 ℃, weight loss rate of less than 2% in Fenton solution treated at 80 ℃ for 1 h at the same time, the series of membranes showed higher conductivity, For example, SPFAE-0.8 membrane (IEC = 2.03 mmol / g) has an electrical conductivity of 217 mS / cm at 80 ° C.