Centre National De La Recherche Scientifique

E.i. Dupont De Nemours and Company

Commissariat &#xc0; L'&#xc9;nergie Atomique Et Aux &#xc9;nergies Alternatives

Ecole Nationale Superieure De Chimie De Montpellier

Arkema France

Honeywell International Inc.

Universitè De Montpellier

Peugeot Citroen Automobiles Sa

Commissariat a L'energie Atomique

Pall Corporation

Seb S.a.

Elf Atochem S.a.

Solvay (societe Anonyme)

Safran Electrical & Power

Université Montpellier 2 Sciences Et Techniques

Bruno Ameduri

Ming-Hong Hung

Bernard Boutevin

Gerald Lopez

Fabrice Domingues Dos Santos

Robert J Kaufman

Anthony Bonnet

Alagappan Thenappan

Thibaut Soulestin

Deborah Jones

Hassan Ait-Haddou

Noureddine Ajellal

Eric J Rainal

Thierry Lannuzel

Hervé Galiano

Philippe Capron

Jacques Roziere

Xavier Glipa

Pierrick Buvat

Jean-Luc Perillon

Andrew Jackson

Stephan M Brandstadter

Samuel Devisme

Vicki Hedrick

Ghislain David

Mathieu Julien Charlas

Arnaud Morin

Herve Galiano

Stéphane Cadra

E Bradley Edwards

Vimal Sharma

Didier Vanhoye

Odile Fichet

John Chien

Jean-François Gerard

Cédric Loubat

Janick Bigarre

Georgi Kostov

Vincent Ladmiral

Ali Alaaeddine

Jannick Bigarre

Louis Delon

Guillaume Frutsaert

Frédéric Boschet

Aurelien Soules

Guillaume Tillet

Régis Mercier

Janet Boggs

Barbara Gantillon

Audrey Martinent

Linda Chikh

Edward Norman

Robert Legros

Gary Martin

Renaud Perrin

Jean-Pierre Habas

Gérard Gebel

Cyrille Andre Jean-Marie Boyer

George K Kostov

James A Belmont

Petya Petrova

Charlotte Beord

Georges Kostov

Renaud Souzy

Nathalie Pierre

Elsa Ballot

Olivier Loubet

Véronique Bounor Legare

Sérigne Seck

Nelly Durand

Jérôme Vergnaud

Yogesh Patil

Russell Tayouo

Stéphanie Roualdes

Donatien Henri Edouard Martineau

Aurélien Soules

Gerald Pierre Maurice Lopez

Nadim Eid

Gérald Pierre Maurice Lopez

Eric Rainal

Frederic Boschet

A process for preparing a crosslinked fluoropolymer film, including the successive steps of: (1) formulating an ink containing: (a) the product of the reaction of triethylamine with at least one fluorinated copolymer obtained by radical copolymerization of monomers including: (i) vinylidene fluoride (VDF), (ii) trifluoroethylene (TrFE), (iii) at least one chlorinated monomer of formula &#x2014;CXCl&#x2550;CXXwhere X, Xand Xindependently denote H, F or CF, wherein at most one of X, Xand Xdenotes CF; (b) at least one crosslinking agent; (c) at least one photoinitiator; and (d) at least one organic solvent; (2) applying said ink in film form to a substrate; and (3) UV-irradiating said film. Also, the film capable of being obtained according to this process, and also to the uses thereof, in particular in the manufacture of (opto)electronic devices and more particularly in the manufacture of a gate dielectric layer in a field-effect transistor.

Method for preparing a cross-linked fluorinated polymer film

The present invention relates to the use of a fluorinated copolymer in the manufacture of a solid polymer film, to give said film properties of adhesion to a metal surface or to glass. It also relates to a process for improving the adhesion of a fluoropolymer to a metal, polymer or glassy substrate, and also to a composite part comprising a solid polymer film in direct contact with at least one metal or glassy element.

Use of a vinylidene fluoride copolymer for providing a film with properties of adhesion

Disclosed are porous membranes including a porous support and a coating comprising a copolymer having monomeric units A and B, and optionally monomeric units C; wherein A is a halogenated vinyl monomer other than tetrafluoroethylene, a halogenated alkyl vinyl ether, or an alkene of the formula CH, wherein n is 1-6; B is a perfluoro (alkyl vinyl)ether compound, a perfluoroalkyl vinyl compound, or a perfluoro alkoxyalkyl vinyl ether compound, each compound having one or more sulfonic acid groups or a salt thereof, one or more sulfonyl fluoride groups, one or more sulfonamide groups, or one or more sulfonate ester groups, and C is vinylidene fluoride. Also disclosed are methods of preparing such porous membranes and methods of treating fluids by the use of these membranes.

Porous membrane having a fluorinated copolymer as surface treatment

The invention relates to a fluorinated copolymers which are particularly based on vinylidene fluoride (VDF) or trifluoroethylene (TrFE) and particularly functionalized by functional and/or functionizable vinyl ethers. The invention also relates to methods for producing said copolymers, and to the applications thereof.

Functionalised fluorinated copolymers

The present invention relates to a cross-linkable composition comprising: i) a fluorinated &#x3b1;,&#x3c9;-bis(propargyl) oligomer of formula (I): in which m is 1 to 100, e.g. 1 to 93, n is 2 to 150, e.g. 1 to 128, p is 0 to 2, preferably 0 or 1.75, and n, m and p are selected such that the fluorinated &#x3b1;,&#x3c9;-bis(propargyl) oligomer of formula (I) has a number average molar mass Mn of 400 to 25000; ii) a cross-linking agent comprising at least three azide-Ngroups; and iii) optionally, a fluorinated oligomer comprising two terminal azide-N3 or fluorinated &#x3b1;,&#x3c9;-bis(azide) oligomer groups. The invention also relates to a material comprising the click chemistry reaction product of the cross-linkable composition of the invention, to a method for preparing said material and to the uses thereof.

Fluoroether unit-based thermostable, low-Tand thermosetting cross-linked materials

Disclosed is a copolymer film that includes a first comonomer including a chlorofluoro olefin and a second comonomer that is selected from the group consisting of itaconic acid, 2,3-dihydropyran, D-glucal, glycerine carbonate vinyl ether, 2-hydroxypropyl acrylate, maleic anhydride, vinylidene chloride, and mixtures thereof.

Fluoropolymers containing a copolymerized fluoromonomer and a functional hydrocarbon comonomer and articles made from such fluoropolymers

Provided is a metal-oxide nanofiller including at least two graft chains, at least one of the chains being hydrophilic and the other being a hydrophobic chain compatible with fluorinated polymers. The hydrophobic chain is an oligomer, the weight-average molar mass Mw of which is between 300 and 20,000 g/mol. Also provided is a non-stick coating comprising such a filler, as well as to a culinary article provided with such a coating.

Metal-oxide nanofiller, method for synthesising same, and use thereof in a fluorocarbon-resin non-stick coating

A polymeric molecule having the formula: X&#x2014;[C(A)C(B)(B')]-Q[CY&#x2550;C(Z)(Z&#x2032;)] or [C(A)=C(B)]-Q[C(Y)(Y&#x2032;)&#x2014;C(Z)(Z&#x2032;)]&#x2014;X&#x2032;, wherein A is either H or F; B and B&#x2032; are either H, F, or Cl, and are not necessarily the same; X and X&#x2032; are Br, Cl or I (and are not necessarily the same); Y and Y&#x2032; are F, Br, Cl or I (and are not necessarily the same); and wherein Z and Z&#x2032; are F, Br, Cl or I (and are not necessarily the same); Q is optional and is either oxygen (O) or sulfur (S); and n is at least 1.

Process, properties, and applications of graft copolymers

The invention concerns a method for preparing block copolymers, comprising a step of controlled free-radical copolymerisation of trifluoroethylene with at least one additional monomer, different from trifluoroethylene, in the presence of a chain transfer agent, said chain transfer agent being a xanthate compound, a trithiocarbonate compound or a monoiodide compound. The invention also concerns the block copolymers likely to be obtained by this method.

Controlled free-radical copolymerization of trifluoroethylene

This invention concerns copolymers that may be used for incorporation into electrolytic membranes for lithium generators, comprising at least one vinyl ether repetitive unit comprising a pendant cyclic carbonate group.

Halogen copolymers comprising at least one repetitive vinyl ether unit having one carbonate pendant group

Methods for the synthesis of CTFE-based block copolymers through iodine transfer polymerization are disclosed. In an exemplary embodiment, a method includes reacting a fluoromonomer 'M' with a chain transfer agent of the formula X&#x2014;Y or Y&#x2014;X&#x2014;Y, wherein X represents a C-Chydrocarbon, a C-Chydrofluorocarbon, C-Chydrochlorofluorocarbon, or C-Cfluorocarbon and Y represents iodine or bromine, in the presence of a radical initiator, to form a macro-initiator of the formula: X-poly(M)-Y or Y-poly(M)-X-poly(M)-Y, wherein poly(M) represents a polymer of the fluoromonomer. The method further includes reacting the macro-initiator with chlorotrifluoroethylene (CTFE) in the presence of a radical initiator to form a diblock or a triblock CTFE-based block copolymer of the formula: X-poly(M)-block-poly(CTFE) or PCTFE-block-poly(M)-X-poly(M)-block-PCTFE.

Synthesis of chlorotrifluoroethylene-based block copolymers by iodine transfer polymerization

The invention relates to a monomer (6, 14) carrying an imidazole-type heterocycle (3). According to the invention, the chemical structure of said monomer (6, 14) comprises at least one unit of formula (I) wherein R1 comprises an alkenyl grouping and R2 comprises a grouping for protecting one of the nitrogen atoms of the heterocycle. The invention also relates to a monomer carrying a benzimidazole-type heterocycle, and to protected polymers obtained from said monomers, deprotected polymers produced by the protected polymers, a proton exchange membrane based on deprotected polymers, and a fuel cell provided with said membrane. Furthermore, the invention relates to methods for producing the above-mentioned monomers and polymers.

Monomers and polymers carrying imidazole and benzimidazole groupings, and proton exchange membrane containing the same for the production of a fuel cell

Fluorinated macromonomers, a PCTFE-g-poly(M) graft copolymer, and moisture barrier films and articles formed therefrom are provided. The PCTFE-g-poly(M) graft copolymers have a PCTFE backbone component and a plurality of pendant groups attached to the PCTFE backbone component.

The invention relates to a method of preparing a fluorinated copolymer, comprising a step of copolymerization of a fluorinated monomer (of the vinylidene fluoride type) with an &#x3b1;-trifluoromethacrylic acid monomer or derivative of &#x3b1;-trifluoromethacrylic acid, in the presence of a xanthate or trithiocarbonate compound. The invention also relates to copolymers obtained by this method as well as block copolymers comprising a copolymer block prepared according to this method.

Controlled radical copolymerization of fluorinated monomers by xanthate or trithiocarbonate

The invention relates to novel copolymers and to an associated preparation method, comprising recurrent units bearing a pendant chain of the polyoxyalkylene type.

Process for preparing novel copolymers with a fluoropolymer backbone comprising polyoxyalkylene pendant chains

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Montpellier, France

Bruno Ameduri