申请人:Brunelle Daniel Joseph
公开号:US20080004443A1
公开(公告)日:2008-01-03
Sulfonated block copolymer suitable for use as proton exchange membranes for fuel cells comprise sulfonated polyaryletherketone blocks and polyethersulfone blocks. The sulfonated polyaryletherketone blocks comprise structural units of formula I
wherein R
1
is C
1
-C
10
alkyl, C
3
-C
12
cycloalkyl, C
6
-C
14
aryl, allyl, alkenyl, alkoxy, halo, or cyano;
Ar
1
and Ar
2
are each independently C
6
-C
20
aromatic radicals, or Ar
1
and Ar
2
, taken together with an intervening carbon atom, form a bicyclic C
6
-C
20
aromatic radical or a tricyclic C
6
-C
20
aromatic radical;
M is H, a metal cation, a non-metallic inorganic cation, an organic cation or a mixture thereof; and
a is 0 or an integer from 1 to 4.
适用于燃料电池质子交换膜的磺化嵌段共聚物包括磺化聚芳醚酮嵌段和聚醚砜嵌段。磺化聚芳醚酮嵌段包括以下结构单位I的结构单元,其中R1是C1-C10烷基,C3-C12环烷基,C6-C14芳基,烯丙基,烯烷基,烷氧基,卤素或氰基;Ar1和Ar2分别是C6-C20芳香基,或Ar1和Ar2连同一个介于碳原子形成一个双环C6-C20芳香基或三环C6-C20芳香基;M为H,金属阳离子,非金属无机阳离子,有机阳离子或它们的混合物;a为0或1至4之间的整数。