The invention relates to copolymers comprising:
at least one recurrent unit of the following formula (I):
at least one recurrent unit of the following formula (II):
and
at least one recurrent unit of the following formula (III):
wherein:
R1 and R2 represent, independently of each other, an alkylene group;
Z1 is a group of formula —PO3R3R4, R3 and R4 representing, independently of each other, a hydrogen atom, an alkyl group or a cation;
Z2 is a group of formula —SO2R5, R5 representing an alkyl group or an aryl group;
X and Y represent, independently of each other, a halogen atom or a perfluorocarbon group.
本发明涉及的共聚物包括
至少一个下式(I)的重复单元:
至少一个下式(II)的重复单元:
和
至少一个下式(III)的重复单元:
其中:
R1 和 R2 各自代表一个亚烷基;
Z1 是式 -PO3R3R4 的基团,R3 和 R4 各自代表氢原子、烷基或阳离子;
Z2 是式-SO2R5 的基团,R5 代表烷基或芳基;
X 和 Y 各自代表一个卤素原子或一个
全氟碳基团。