摘要
以一种磺化二胺单体2,2′-二磺酸基-4,4′-二苯醚二胺(S-ODA)与非磺化单体4,4′-二苯醚二胺(ODA),及二酐单体3,3′,4,4′-二苯甲酮四羧酸二酐(BTDA)为原料,采用高温一步法直接聚合,得到了一系列磺化聚酰亚胺(SPI)质子交换膜材料,并用红外光谱对聚合物进行了表征.通过改变聚合体系中磺化单体与非磺化单体的比例控制聚合物的磺化度,并研究了材料的组成对膜的电导率、吸水率等性能的影响。
A Series sulfonated polyimides (SPI) for fuel cells were synthesized via direct polymerization with a sulfonated aromatic diamine (S-ODA), a non-sulfonated diamine (ODA) and 3, 3′, 4, 4′-benzophenoneteracarboxylic dianhydride(BTDA), and then characterized by FT-IR. The sulfonation degree of the SPIs was controlled by changing the mole ratio of the monomers. The influence of sulfonation degree on the properties of the polymers such as proton conductivity and water uptake was also investigated.
出处
《化工学报》
EI
CAS
CSCD
北大核心
2004年第S1期230-233,共4页
CIESC Journal
基金
科技部"863"计划(No.2003AA517070)
科技部"973"计划(No.G2000026410)
