SPEEK/PES嵌段聚合物的制备及性能  

Synthesis and Properties of SPEEK/PES Block Polymers

作　　者：李雪峰[1] 郭梅梅[1] 刘佰军[1] 姜振华[1] 

机构地区：[1]吉林大学麦克德尔米德实验室,长春130012

出　　处：《高等学校化学学报》2011年第5期1022-1024,共3页Chemical Journal of Chinese Universities

基　　金：国家自然科学基金(批准号:50973040);吉林省科技厅-国际合作项目(批准号:20100706)资助

摘　　要：燃料电池作为高效环保的绿色能源,有望在未来获得广泛应用.质子交换膜是燃料电池的核心部件,其研制和开发备受瞩目.以Nafion膜为代表的全氟磺酸型质子交换膜,具有较高的质子传输能力及优异的尺寸和化学稳定性,其研制已实现工业化.然而其使用温度较低、价格昂贵及阻燃性差等缺点限制了Nafion膜的更广泛应用.Two block SPEEK/PES copolymers were prepared via the postsulfonation reaction of the well designed precursors.The influence of microstructure on the properties of the membranes was investigated.The block copolymers had higher water uptake and proton conductivity in comparison with their random analogue.At 80 ℃,the proton conductivities of the block copolymers were above 0.22 S/cm.The membranes of the block polymers exhibited obvious phase-separation microstructure.The study suggested that some properties could be improved by rational designing of the chemical architecture.

关 键 词：质子交换膜 聚芳醚酮 聚芳醚砜 嵌段聚合物 

分 类 号：O631.2[理学—高分子化学]