Side chain crosslinking of aromatic polyethers for high temperature polymer electrolyte membrane fuel cell applications
作者:Andrea Vöge、Valadoula A. Deimede、Joannis K. Kallitsis
DOI:10.1002/pola.25006
日期:2012.1.15
Novel aromatic polymers bearing polar pyridine units in the main chain and side chain crosslinkable hydroxyl and propargyl groups have been successfully synthesized. The polymers have been investigated in terms of their critical properties related to their application in high temperature polymer electrolyte membrane fuel cells, such as doping ability, mechanical properties, and thermal stability. Crosslinked
已经成功合成了在主链和侧链可交联的羟基和炔丙基中带有极性吡啶单元的新型芳香族聚合物。已经就与它们在高温聚合物电解质膜燃料电池中的应用相关的关键性能,例如掺杂能力,机械性能和热稳定性,对聚合物进行了研究。通过将羟基侧链基团与十氟联苯直接交联来制备交联膜,所述十氟联苯首次用作交联剂。然而,将羟基进一步官能化成炔丙基衍生物也已经导致在热固化之后交联的聚合物。与未交联的类似物相比,两种类型的交联膜在掺入磷酸时均表现出较高的玻璃化转变温度和较低的掺杂水平,从而证实了成功交联网络的形成。©2011 Wiley Periodicals,Inc. J Polym Sci A部分:Polym Chem,2012年