Sulfonimide containing compounds and their use in polymer electrolyte membranes for electrochemical cells
申请人:Teasley F. Mark
公开号:US20060178411A1
公开(公告)日:2006-08-10
A compound having the general structure (I), wherein A
1? is a monovalent, divalent, or trivalent aromatic heterocyclic group comprising heterocyclic rings; R
1?, R
2?, and R
3? are divalent fluorinated groups; m, n, and p are 0 to 3, with the proviso that m+n+p is equal to 1, 2, or 3 so that the carbon atoms of the heterocyclic rings are fully substituted by acidic fluorinated sulfonyl-containing groups; q is 0 or 1; Y
1? is —OH, —NH—SO?2#191-R
4? wherein R
4? is a monovalent fluorinated group, —NH—, —NH—SO?2#191-R
5?-SO?2#191-NH—, or —NH—SO?2#191-R
6?-A
2?-R
7?-SO?2#191-NH—, wherein A
2? is a divalent heterocyclic group and R
5?, R
6?, and R
7? are divalent fluorinated groups; and Y
2? and Y
3? are —OH or —NH—SO?2#191-R
4?; with the proviso that when m and n are each equal to 1, p is 0 to 1, and q is 0, Y
1? is selected from the group consisting of —NH—, —NH—SO?2#191-R
5?-SO?2#191-NH—, and —NH—SO?2#191-R
6?-A
2?-R
7?-SO?2#191-NH—. By compound is meant either a small molecule or a repeat unit of a polymer. The invention also provides a solid polymer electrolyte membrane, a membrane electrode assembly, a gas diffusion electrode, an electrocatalyst coating composition, and a fuel cell.
一种具有通用结构(I)的化合物,其中A1?是一种单价、二价或三价的芳香杂环基团,包括杂环环;R1?、R2?和R3?是二价的氟化基团;m、n和p为0到3,但要求m+n+p等于1、2或3,以便杂环环的碳原子被含有酸性氟磺酰基团的基团完全取代;q为0或1;Y1?是—OH、—NH—SO?2#191-R4?其中R4?是一种单价的氟化基团,—NH—、—NH—SO?2#191-R5?-SO?2#191-NH—,或—NH—SO?2#191-R6?-A2?-R7?-SO?2#191-NH—,其中A2?是二价的杂环基团,R5?、R6?和R7?是二价的氟化基团;Y2?和Y3?是—OH或—NH—SO?2#191-R4?;但要求当m和n各等于1,p为0到1,q为0时,Y1?从由—NH—、—NH—SO?2#191-R5?-SO?2#191-NH—和—NH—SO?2#191-R6?-A2?-R7?-SO?2#191-NH—组成的群中选择。所述化合物既可以是小分子,也可以是聚合物的重复单元。本发明还提供了一种固体聚合物电解质膜、膜电极组件、气体扩散电极、电催化剂涂层组成物和燃料电池。