Centre National De La Recherche Scientifique

Universite Montpellier II Sciences Et Techniques Du Languedoc

Ifp Energies Nouvelles

Université De Montpellier II Sciences Et Techniques Du Languedoc

Hubert Mutin

Gilles Guerrero

Alain Forestiere

Alexandra Chaumonnot

Renaud Revel

Florence Brodard-Severac

Julien Almaric

Julien Amalric

The invention relates to a process for modifying an inorganic substrate, directed toward giving it antimicrobial properties, said process consisting in grafting in one or more steps onto a surface of said substrate groups with intrinsic antimicrobial properties or groups capable of releasing species with antimicrobial properties. The grafting is performed by means of an organophosphorus coupling agent. A subject of the invention is similarly a substrate obtained by this process, as well as diverse uses of such a substrate.

Preparation of an inorganic substrate having antimicrobial properties

The invention concerns a process for preparing a hybrid organic-inorganic material (HOIM) with phosphorus-containing bridges between the surface of an inorganic substrate containing an element M and one or more organic groups of the covalent M-O-P-R type, said process using, as a precursor for said organic group or groups, at least one organophosphorus acid halide with formula RP(O)Xin which x=1 or 2, y=3&#x2212;x, X being a halogen and R designating at least one organic alkyl, aryl or aryl-alkyl group. Non-exhaustive applications for the hybrid organic-inorganic material obtained by the process of the invention are in the fields of anti-corrosion, lubrication, microelectronics, nanotechnologies, composite materials, heterogeneous catalysis, supported catalysis, depollution and biomedical applications.

Process for preparing materials by grafting halogenated phosphorus-containing groups onto an inorganic surface

The invention relates to organophosphorus compounds comprising a polysulfide bridge, to their process of preparation and to their use as coupling agent between an inorganic or metal filler and an elastomer. The compounds correspond to the formula (I) (RO)RP(O)&#x2014;O&#x2014;(CH)&#x2014;S&#x2014;(CH)&#x2014;O&#x2014;P(O) (OR)Rin which R represents a hydrogen , an alkyl, an aryl, a trialkylsilyl, a trialkylamino or an alkali metal; Rrepresents an alkyl or an aryl; x is 0 or 1; y is an integer from 1 to 22, preferably from 2 to 4; z is equal or larger than 3, t is 0 or 1.

Organophosphorus compounds having polysulfide bridge

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Clapiers, France

Hubert Mutin