Aromatic monomers with pendant fluoroalkylsulfonate and sulfonimide groups
摘要:
Novel styrene and dimethylisophthalate monomers with pendant lithium fluoroalkylsulfonate or sulfonimide functional groups have been prepared from the corresponding phenolic intermediates. One route involves several steps and uses 1,2-dibromotetrafluoroethane as the key fluorinated intermediate. A second route with fewer steps utilizes a perfluoroalkylsulfonyl-substituted vinyl ether as the source of the fluorinated substituents but affords a product with significantly higher equivalent weight. (C) 2000 Elsevier Science S.A. All rights reserved.
Aromatic monomers with pendant fluoroalkylsulfonate and sulfonimide groups
摘要:
Novel styrene and dimethylisophthalate monomers with pendant lithium fluoroalkylsulfonate or sulfonimide functional groups have been prepared from the corresponding phenolic intermediates. One route involves several steps and uses 1,2-dibromotetrafluoroethane as the key fluorinated intermediate. A second route with fewer steps utilizes a perfluoroalkylsulfonyl-substituted vinyl ether as the source of the fluorinated substituents but affords a product with significantly higher equivalent weight. (C) 2000 Elsevier Science S.A. All rights reserved.
Monomers comprising superacidic groups, and polymers therefrom
申请人:Moore David Roger
公开号:US20080114183A1
公开(公告)日:2008-05-15
The invention relates generally to monomers comprising superacidic functional groups. The superacidic functional groups comprise fluorinated sulfonate moieties. Monomers provided by the present invention include dihydroxy aromatic compounds, aromatic diamines, aromatic dicarboxylic acids, aromatic diacarboxylic acid esters, aromatic dithiols, and monomers comprising mixed functionalities, for example monomers comprising an aromatic amine group and an aromatic hydroxyl group. The monomers provided by the present invention are useful in the preparation of novel polymers comprising superacidic functional groups, materials useful in membrane applications. The superacidic functional groups present in the polymer compositions impart excellent proton conductivities. In one embodiment, the present invention provides monomers which may be used to prepare polymers useful as materials for polymer electrolyte fuel cell membranes.
Aromatic Ionomers with Highly Acidic Sulfonate Groups: Acidity, Hydration, and Proton Conductivity
作者:Ying Chang、Giuseppe F. Brunello、Jeffrey Fuller、Marilyn Hawley、Yu Seung Kim、Melanie Disabb-Miller、Michael A. Hickner、Seung Soon Jang、Chulsung Bae
DOI:10.1021/ma201759z
日期:2011.11.8
coupling with sulfonated phenyl bromides was developed for the preparation of aromatic ionomers. Superacidic fluoroalkyl sulfonic acid and less acidic aryl and alkyl sulfonic acids were efficiently incorporated into the aromatic ring of model polystyrene, and the resulting sulfonatedionomers were characterized for their properties as proton-conducting membranes. The membrane properties of ionomers containing
[EN] AROMATIC POLYMERS WITH PENDANT FLUORINATED IONIC GROUPS<br/>[FR] POLYMERES AROMATIQUES PORTANT DES GROUPES IONIQUES FLUORES PENDANTS
申请人:E.I. DU PONT DE NEMOURS AND COMPANY
公开号:WO1999067304A1
公开(公告)日:1999-12-29
(EN) A class of unsaturated compounds including containing a fluoroether-substituted aromatic ring, polymers, including ionomers, formed therefrom, and processes for forming them. The compositions of the invention have particular suitability for use in electrochemical applications.(FR) La présente invention concerne une classe de composés insaturés, et notamment des composés comprenant un cycle aromatique substitué par un fluoroéther, mais aussi des polymères ainsi que les ionomères formés à partir de ces polymères. L'invention concerne également les procédés d'élaboration correspondants. Les compositions de l'invention conviennent particulièrement aux applications d'électrochimie.
AROMATIC POLYMERS WITH PENDANT FLUORINATED IONIC GROUPS
申请人:E.I. DUPONT DE NEMOURS AND COMPANY
公开号:EP1095071B1
公开(公告)日:2004-06-16
Polymers comprising superacidic groups, and uses thereof
申请人:Moore David Roger
公开号:US20080114149A1
公开(公告)日:2008-05-15
The invention relates generally to polymers derived from monomers having aromatic superacidic functional groups. The superacidic functional groups comprise fluorinated sulfonate moieties. Polymers provided by the present invention include polyethers, polyesters, polycarbonates, polyestercarbonates, polyetherketones, and polyethersulfones among others. The polymers provided by the present invention include block and random copolymers. In one embodiment, the present invention provides a polyetherketone-polyethersulfone block copolymer comprising superacidic functional groups. Polymers comprising superacidic functional groups are useful materials in membrane applications. The superacidic functional groups present in the new polymer compositions impart excellent proton conductivities. In one embodiment, the present invention provides polymers useful as materials for polymer electrolyte fuel cell membranes.