High Performance Cross-Linked Poly(2-acrylamido-2-methylpropanesulfonic acid)-Based Proton Exchange Membranes for Fuel Cells
High Performance Cross-Linked Poly(2-acrylamido-2-methylpropanesulfonic acid)-Based Proton Exchange Membranes for Fuel Cells
复制标题
用于燃料电池的高性能交联聚（2-丙烯酰氨基-2-甲基丙磺酸）基质子交换膜
DOI：
10.1021/ma1010099
复制
发表时间：
2010-08-10
期刊：
影响因子：
5.5
通讯作者：
Liu, Jianguo
中科院分区：
文献类型：
--
作者：
Diao, Hanbin;Yan, Feng;Liu, Jianguo
聚（2-丙烯酰胺基-2-甲基丙磺酸）（PAMPS）由于其磺酸基具有上级质子传导能力而被用于制备质子交换膜（PEM）。由于PAMPS具有水溶胀性，甚至溶于水，因此有必要将AMPS与适当的单体油共聚以控制膜的溶胀和机械性能。然而，作为水溶性单体，AMPS通常与疏水性单体油不混溶。为了克服这一障碍，AMPS转化为离子液体（IL）的形式与布朗斯台德碱，1-甲基咪唑中和。所得的1-甲基咪唑鎓 2-丙烯酰胺基-2-甲基丙磺酸盐（[MIm][AMPS]）与单体油混溶，因此可以与苯乙烯、丙烯腈和二乙烯基苯交联。通过用酸处理将所产生的IL形式的共聚物膜转化为酸形式。离子液体和酸形式的膜都具有良好的热稳定性和机械性能。
Poly(2-acrylamido-2-methylpropanesulfonic acid) (PAMPS) has been used for the preparation of proton exchange membranes (PEMs) due to the superior ability of sulfonic acid groups originated from AMPS in supporting proton conduction. Since PAMPS is water-swollen or even soluble in water, it is necessary to copolymerize AMPS with proper monomer oils to control the swelling and mechanical properties of membranes. However, as a water-soluble monomer, AMPS is generally immiscible with hydrophobic monomer oils. To overcome this obstacle, AMPS was converted to an ionic liquid (IL) form by neutralization with a Bronsted base, 1-methylimidazole. The resultant 1-methylimidazolium 2-acrylamido-2-methylpropanesulfonate ([MIm][AMPS]) is miscible with monomer oils and thus could be cross-linked with styrene, acrylonitrile, and divinylbenzene. The produced copolymer membranes in IL form were converted to acid form by treated with acid. Membranes in both IL and acid forms have good thermal stability and mechanical propert...