A monomer comprising the structure (1a) or (1b) wherein Z comprises S, SO2, or POR wherein R comprises a linear or branched perfluoroalkyl group of 1 to 14 carbon atoms optionally containing oxygen or chlorine, an aryl or substituted aryl group of 6 to 12 carbon atoms, or an alkyl of 1 to 8 carbon atoms; RF comprises a linear or branched perfluoroalkene group of 1 to 20 carbon atoms, optionally containing oxygen or chlorine; Q is chosen from F, -OM, NH2, -N(M)SO2R2F, and -C(M)(SO2R2F)2, wherein M comprises H, an alkali cation, or ammonium; and R2F groups comprise perfluorinated or partially fluorinated alkyl, and may optionally include ether oxygens; and n is 1 or 2 for (1a), and n is 1, 2, or 3 for (1b). These monomers are used in the preparation of homopolymers and copolymers that are useful in preparing polymer electrolyte membranes. Electrochemical cells, such as fuel cells, containing these membranes are also described.
一种单体,包括结构(1a)或(1b),其中Z包括S、SO2或POR,其中R包括1到14个碳原子的线性或支链
全氟烷基基团,可选地含有氧或
氯,或者是6到12个碳原子的芳基或取代芳基基团,或者是1到8个碳原子的烷基;RF包括1到20个碳原子的线性或支链
全氟烯基基团,可选地含有氧或
氯;Q选择自F、-OM、NH2、-N(M)SO2R2F和-C(M)(SO2R2F)2,其中M包括H、碱
金属阳离子或
铵;R2F基团包括
全氟化或部分
氟化烷基,并可选地包括醚氧原子;n为1或2用于(1a),n为1、2或3用于(1b)。这些单体用于制备在制备聚合物电解质膜方面有用的均聚物和共聚物。还描述了含有这些膜的电
化学电池,如燃料电池。