Commissariat a L'energie Atomique Et Aux Energies Alternatives

Université De Cergy Pontoise

Centre National De La Recherche Scientifique

Valeo Equipements Electriques Moteur

Ecole Nationale Superieure De Chimie De Montpellier

Institut Vedecom

Université De Savoie

Linda Chikh

Odile Fichet

Arnaud Morin

Philippe Banet

Bruno Ameduri

Régis Mercier

Gérard Gebel

Adrien Guimet

Arnaud Soisson

Thomas Fouet

A membrane for a proton exchange membrane fuel cell including, by weight with respect to the total weight of the membrane:

Membrane for a proton exchange membrane fuel cell

The invention relates to an electronic component () comprising at least one semiconductor chip () and at least one substrate (), the semiconductor chip () being encapsulated in a polyorganosiloxane resin (), which is the result of hardening a composition comprising at least: one portion (A) comprising at least one polyorganosiloxane (A1) which contains at least two &#x2014;CH&#x2550;CHreactive groups per molecule; one portion (B) comprising a polyorganosiloxane (B1) which comprises at least two Si&#x2014;H groups per molecule; and at least one hydrosilation catalyst (C1), the components (A1) and (B1) being in quantities such that the molar ratio of Si&#x2014;H/&#x2014;CH&#x2550;CHin the composition is no lower than 0.4.

Encapsulation of electronic components in polymer materials

In order to carry out the encapsulation of electronic components, the invention proposes to cover the electronic components () with a heat-polymerisable material corresponding to a composition comprising a diimide constituent and a diamine constituent, in which the diimide constituent has been predissolved in the diamine constituent, and to heat the assembly obtained under conditions suitable for carrying out the curing of the material by an addition polymerization reaction between said diimide constituent and the diamine constituent. The invention finds an application in particular in the field of electronic power modules.

Process of encapsulating electronic components

Interpenetrating polymer networks comprising a first network of polymer A formed from monomers, at least one of which contains an aromatic group functionalized with a cation-exchange group, and a second network of polymer B formed from monomers, at least one of which contains a fluorinated group (R). Use of these interpenetrating polymer networks for manufacturing fuel cell membranes.

Interpenetrating polymer networks and uses thereof

Growing community of inventors

Maisons-Laffitte, France

Linda Chikh