A sulphur-containing and sulphonated aromatic perfluoroalkane monomer is provided that can be used for the manufacture of a polymer membrane for a PEM-type fuel cell. The perfluoroalkane monomer is a functionalized polymer that has a structure corresponding to a formula (I):
E
1
-Ar
1
—X
1
—(CF
2
)
n
—X
2
—Ar
2
-E
2
(I)
in which:
n is in a range from 1 to 20;
X
1
and X
2
, which are identical or different, represent S, SO, or SO
2
;
Ar
1
, Ar
2
, which are identical or different, represent a phenylene group, at least one of Ar
1
and Ar
2
bearing a sulphonic (—SO
3
H) group or a sulphonate (—SO
3
M) group, in which M represents an alkali metal cation; and
E
1
and E
2
, which are identical or different, represent an electrophilic group such as a halogen, specifically fluorine or chlorine.
提供一种含
硫和磺化芳香
全氟烷单体,可用于制造用于P
EM型燃料电池的聚合物膜。
全氟烷单体是一种具有结构对应于式(I)的功能化聚合物:E1-Ar1—X1—(
CF2)n—X2—Ar2-E2(I),其中:n在1到20的范围内;X1和X2(相同或不同)代表S、SO或SO2;Ar1、Ar2(相同或不同)代表苯基,Ar1和Ar2中至少一个带有
磺酸基(—SO3H)或
磺酸盐基(—SO3M),其中M代表碱
金属阳离子;E1和E2(相同或不同)代表亲电性基团,如卤素,特别是
氟或
氯。