Fabrication of Thermally Stable Sulfonated Poly(arylene ether sulfone) Containing Sulfonic Acid Based Additives for Proton Exchange Membrane Fuel Cells
Fabrication of Thermally Stable Sulfonated Poly(arylene ether sulfone) Containing Sulfonic Acid Based Additives for Proton Exchange Membrane Fuel Cells
复制标题
用于质子交换膜燃料电池的含磺酸基添加剂的热稳定磺化聚(亚芳基醚砜)的制备
DOI：
10.1002/slct.202203309
复制
发表时间：
2022
期刊：
影响因子：
2.1
通讯作者：
Arnett, Natalie Y.
中科院分区：
文献类型：
--
作者：
Moxey, D'Andra;Devendhar Singh, Sanjay Kumar;Plunkett, Emily;Moore, Robert B.;Arnett, Natalie Y.
对磺酸添加剂对制造用于质子交换膜燃料电池应用的热稳定磺化聚（亚芳基醚砜）（PAES）复合材料的影响进行了系统研究。成功制备了含有不同浓度（1、5和10 vol.%）芳香族磺酸添加剂（苯胺-2-磺酸（ASA）、3-氨基苯磺酸（ABSA）和3-氨基-4-羟基苯磺酸（AHBSA））和联苯酚基二磺化聚（亚芳基醚砜）共聚物（PAES）作为基体的均匀微结构。使用扫描电子显微镜 (SEM) 证实了尺寸范围为 1 至 2 μm 的添加剂的相分离。热重分析 (TGA) 和差示扫描量热法 (DSC) 均证实添加剂衍生的 PAES 在高达 400°C 的温度下具有热稳定性。发现 ASA-PAES 膜的质子电导率随着 ASA 浓度的增加而逐渐增加。在所有膜中，PAES-10 %ASA 在 100 % 相对湿度下表现出最高的电导率，为 0.123±0.01 S⋅cm−1。然而，PAES-1 %ASA 和 PAES-10 %ABSA 膜的浸出率最低。吸水率、离子交换容量和浸出参数与添加剂浓度相关。这项研究将为制备聚合物链中具有高浓度磺化基团、具有增强的热稳定性和质子传导性的 PAES 膜提供指导。
A systematic investigations on the effect of sulfonic acid additives for the fabrication of thermally stable sulfonated poly(arylene ether sulfone) (PAES) composites for proton exchange membranes fuel cell applications were carried out. A uniform microstructure containing different concentration (1, 5 and 10 vol.%) of aromatic sulfonic acid additives (aniline‐2‐sulfonic acid (ASA), 3‐aminobenzenesulfonic acid (ABSA) and 3‐amino‐4‐hydroxy‐benzenesulfonic acid (AHBSA)) and biphenol‐based disulfonated poly(arylene ether sulfone) copolymer (PAES) as the matrix were successfully prepared. Phase segregation of the additives with sizes ranging from 1 to 2 μm was confirmed using scanning electron microscopy (SEM). Both thermogravimetric analysis (TGA) and differential scanning calorimetry (DSC) confirmed that additive derived PAES were thermally stable up to 400 °C. Proton conductivity of ASA‐PAES membranes was found to increase gradually with ASA concentration. Among all membranes PAES‐10 %ASA exhibited the highest conductivity of 0.123±0.01 S⋅cm−1at 100 % relative humidity. However, PAES‐1 %ASA and PAES‐10 %ABSA membranes demonstrated the lowest leaching. Water uptake, ion exchange capacity and leaching parameters were correlated to additive concentration. This study will serve as a guide for the fabrication of PAES membranes with high concentration of sulfonated group in the polymer chain with enhanced thermal stability and proton conductivity.
具有很强分子间相互作用的共混物的小角中子散射分析：聚酰胺/离聚物共混物
影响因子：
5.5
作者：
R. Tucker;C. Han;A. Dobrynin;R. Weiss
通讯作者：
R. Weiss
燃料电池用磺化聚芳醚砜/硅钨酸复合膜的合成与表征
DOI：
--
发表时间：
2013
期刊：
影响因子：
--
作者：
Paradesi Deivanayagam;A. Ramamoorthy;S. Jaisankar
通讯作者：
S. Jaisankar