[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
An Efficient Preparation of New Sulfonyl Fluorides and Lithium Sulfonates
作者:Fabien Toulgoat、Bernard. R. Langlois、Maurice Médebielle、Jean-Yves Sanchez
DOI:10.1021/jo701318n
日期:2007.11.1
polyfluoroalkanesulfonyl fluorides is reported. This method, based on the synthesis of polyfluoroalkyl trimethyl silanes (precursors of polyfluoroalkylsulfinates) as intermediates, allows the successive transformations to be carried out in one pot. Moreover, these sulfonyl fluorides can be obtained from the corresponding sulfinates by electrophilic fluorination. This original approach avoids isolation and purification
报道了几种多氟链烷磺酰氟的有效制备方法。该方法基于多氟烷基三甲基硅烷(多氟烷基亚磺酸盐的前体)作为中间体的合成,可以在一个罐中进行连续的转化。而且,这些磺酰氟可以通过亲电氟化从相应的亚磺酸盐获得。这种原始方法避免了某些热或水解不稳定中间体的分离和纯化。因此,已经从卤代二氟甲基化的前体RCF 2 X(X = F,Br; R = ArC(O),ArS(O)n(CF 2)m ; n = 0,1,2; m制备了一系列新的磺酰氟。 = 1、2),并已转化为相应的磺酸锂,它们有潜力用作锂电池的电解质。
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.