In the operation process of anion exchange membrane fuel cell,water molecules are working as the transmission medium of OH-.Therefore,hygroscopic property is one of the most important performances of anion exchange membranes,in addition to conductivity and alkali resistance stability.It is also the focus of research on the improvement of anion exchange membranes.In this paper,two series of anion exchange membranes for fuel cells based on metal organic framework (MOFs) materials were prepared, and their crystal structures and morphologies were characterized by XRD and SEM.In addition,the water content,swelling degree,swelling kinetics, and mechanical properties were tested and analyzed in detail.The results show that the water content,swelling degree, and mechanical properties of the two membranes are much different. Though the swelling kinetic behavior of the two prepared membranes follow Schott's second⁃order swelling kinetic equation,but exhibit different swelling behaviors,due to the different functions of the two component of MOFs.

The quaternized chitosan (QCS) was synthesized through the nucleophilic substitution reaction under the conditions was that the chitosan was material and the 2, 3epoxypropyl trimethyl ammonium chloride was etherifying agents. Dutch positive electricity glomerular polystyrene (PS) microemulsion was synthesized through the emulsion polymerization method and the hexadecyl trimethyl ammonium bromide was cationic quaternary ammonium salt and the potassium persulfate was initiator. Then the anion exchange membrane was synthesized by take the QCS as material and glutaraldehyde as crosslinking agent, at the same time the PS microemulsion was doping into the casting solution. The standard membrane structure was characterized by FTIR. The content of PS microspheres and glutaraldehyde influence on QCS/PS membrane’s water content and ionexchange capacity, etc properties. The results show that the crosslinking agent can effectively inhibit the QCS membrane’s deformation. When the quality percentage of PS microsphere was 35%, swelling ratio was reduced from 68.5% to 25.8% with the increase of crosslinking degree. But at the same time it reduce the QCS/PS membrane’s ionexchange capacity. And PS microspheres will be improved QCS/PS membrane ionexchange capacity, swelling ratio also will be reduced slightly. The water content is 65% and ionexchange capacity is 4.89 mmol/g when the crosslinking degree was 5% and the quality percentage of PS microsphere was 35%. QCS/PS membrane’s overall performance can be optimized.