[EN] STABLE TRIFLUOROSTYRENE CONTAINING COMPOUNDS, AND THEIR USE IN POLYMER ELECTROLYTE MEMBRANES [FR] TRIFLUOROSTYRÈNE STABLE CONTENANT DES COMPOSÉS ET LEUR UTILISATION DANS DES MEMBRANES D'ÉLECTROLYTE EN POLYMÈRE
[EN] STABLE TRIFLUOROSTYRENE CONTAINING COMPOUNDS, AND THEIR USE IN POLYMER ELECTROLYTE MEMBRANES [FR] TRIFLUOROSTYRÈNE STABLE CONTENANT DES COMPOSÉS ET LEUR UTILISATION DANS DES MEMBRANES D'ÉLECTROLYTE EN POLYMÈRE
Stable Trifluorostyrene Containing Compounds Grafted To Base Polymers, And Their Use As Polymer Electrolyte Membranes
申请人:Yang Zhen-Yu
公开号:US20070208092A1
公开(公告)日:2007-09-06
A fluorinated ion exchange polymer prepared by grafting at least one grafting monomer on to at least one base polymer, wherein the grafting monomer comprises structure 1
a
or 1
b
: wherein Z comprises S, SO
2
, or POR wherein R comprises a linear or branched perfluoroalkyl group of 1 to 14 carbon atoms optionally containing oxygen or chlorine, an alkyl group of 1 to 8 carbon atoms, an aryl group of 6 to 12 carbon atoms or a substituted aryl group of 6 to 12 carbon atoms; R
F
comprises a linear or branched perfluoroalkene group of I to 20 carbon atoms, optionally containing oxygen or chlorine; Q is chosen from F, —OM, NH
2
, —N(M)SO
2
R
2
F
, and C(M)(SO
2
R
2
F
)
2
, wherein M comprises H, an alkali cation, or ammonium; R
2
F
groups comprises alkyl of
1
to
14
carbon atoms which may optionally include ether oxygens or aryl of 6 to 12 carbon atoms where the alkyl or aryl groups may be perfluorinated or partially fluorinated; and n is 1 or 2 for 1
a
, and n is 1, 2, or 3 for 1
b
. These ion exchange polymers are useful in preparing catalyst coated membranes and membrane electrode assemblies used in fuel cells.
Stable Trifluorostyrene Containing Compounds, And Their Use In Polymer Electroyte Membranes
申请人:Yang Zhen-yu
公开号:US20080032184A1
公开(公告)日:2008-02-07
A monomer comprising the structure (1a) or (1b) wherein Z comprises S, SO
2
, or POR wherein R comprises a linear or branched perfluoroalkyl group of 1 to 14 carbon atoms optionally containing oxygen or chlorine, an aryl or substituted aryl group of 6 to 12 carbon atoms, or an alkyl of 1 to 8 carbon atoms; R
F
comprises a linear or branched perfluoroalkene group of 1 to 20 carbon atoms, optionally containing oxygen or chlorine; Q is chosen from F, —OM, NH2, —N(M)SO
2
R
2
F
, and —C(M)(SO
2
R
2
F)
2
, wherein M comprises H, an alkali cation, or ammonium; and R
2
F groups comprise perfluorinated or partially fluorinated alkyl, and may optionally include ether oxygens; and n is 1 or 2 for (1a), and n is 1, 2, or 3 for (1b). These monomers are used in the preparation of homopolymers and copolymers that are useful in preparing polymer electrolyte membranes. Electrochemical cells, such as fuel cells, containing these membranes are also described.