中文摘要：

共沉淀法制备的层状双金属氢氧化物（LDH）分散于氯甲基化聚砜的溶液,经流延法制备了有机-无机杂化膜.通过季铵化、碱性化处理,杂化膜被转变为阴离子交换膜（AEM）.使用X-射线衍射对LDH和AEM样品的结构进行了表征,同时用扫描电镜对AEM样品形貌进行了直接观察,测试了AEM的吸水率、溶胀率、机械性能和离子传导率等.结果表明,LDH含量为5%的AEM具有最佳的综合性能,95℃的离子传导率为3.81×10-2S/cm.

英文摘要：

In order to improve the performance of quaternized polysulfone,layered double hydroxide（ LDH）was prepared via coprecipitation and incorporated into chloromethylated polysulfone（ CMPSF） solution to fabricate organic-inorganic membranes. Then the obtained hybrid membranes were converted into anionexchange membranes（ AEM） by quaternization and alkalization. The X-ray diffraction was used to characterize LDH and AEM samples. The analysis of XRD suggested that LDH had an exfoliated morphology in the hybrid membrane with 3% LDH. When the content of LDH increased to 5%,LDH demonstrated an intercalatedexfoliated morphology in the hybrid membrane. While LDH showed an ordered structure in the hybrid membrane with 10% LDH,which displayed basal peaks characteristic of LDH. These results were consistent with the scanning electron microscopy（ SEM） images. The water uptake,swelling ratio,mechanical property and ion conductivity of AEMs were also investigated. The results showed that the AEM containing 5% LDH had the best comprehensive performances,including the lowest water uptake and swelling ratio,the highest ultimate stress and ion conductivity. These ultimate values of the hybrid membrane with 5% LDH were 55%（ water uptake） and 18%（ swelling ratio） at 60 ℃,25. 8 MPa（ mechanical property）,3. 81 × 10- 2S / cm（ ion conductivity） at 95 ℃,respectively,which was promising for AEM fuel cells.