A proton conducting film includes a polymer having a first part and a second part which are connected by a covalent bond and a plasticizer. The first parts aggregate with each other to form a domain at an operation temperature of the proton conducting film, and the second part crosslinks the domains. The second part has a proton accepting group, and the plasticizer contains a proton donating compound having a pKa of 2.5 or less, and thus the plasticizer penetrates into the second part, and a glass transition temperature of the polymer is lowered compared to when the plasticizer is not included.
                            质子传导薄膜包括一种聚合物,它具有通过共价键和
增塑剂连接的第一部分和第二部分。在质子传导薄膜的工作温度下,第一部分相互聚合形成畴,第二部分交联畴。第二部分具有质子接受基团,
增塑剂含有 pKa 值为 2.5 或更小的质子捐赠化合物,因此
增塑剂可渗透到第二部分,与不含
增塑剂时相比,聚合物的
玻璃化转变温度会降低。