摘要:
The invention relates to a method for forming a polymer film on a surface that conducts or semiconducts electricity by means of electrografting. Said method uses an electrolytic solution containing a selected quantity of Brönsted acid. The invention also relates to the electrically conductive or semiconductive surfaces obtained by means of said method.
摘要:
The invention relates to the use of organic precursors comprising an electroattractive group for the formation, by means of electrochemical grafting, of a uniform organic film, preferably having a thickness of less than or equal to 10nm, on an electrically-conducting or semiconducting surface. The invention also relates to the corresponding method of forming a uniform ultra-thin organic film on an electrically-conducting or semiconducting surface.
摘要:
The invention concerns a bioactive prosthesis comprising a support coated with a polymer layer with reactive functions, and a bioactive substance fixed on the prosthesis via said reactive functions so as to be gradually released on a site for implanting the prosthesis. Such prostheses are useful in the field of cardiology to avoid for example restenosis resulting from implantation of stents in coronary arteries.
摘要:
The invention relates to a method of fixing macro-objects to an electricity conducting- or semi-conducting surface by means of electrografting. The invention also relates to the electricity conducting- or semi-conducting-surfaces obtained using the aforementioned method and to the applications of same.
摘要:
The present invention relates to a method for preparing an organic film at the surface of a solid substrate, comprising a step of contacting said surface with a liquid solution containing (i) at least one solvent, at least one adhesion primer in non-electrochemical conditions and for generating radicalar entities from the adhesion primer. The liquid solution may further include (iii) at least one monomer different from the adhesion primer and polymerisable in a radicalar manner. The present invention also relates to an electrically non-conductive solid substrate on which an organic film is grafted according to said method, and to a kit for preparing an essentially polymeric organic film at the surface of the solid substrate.
摘要:
The present invention relates to the field of surface coatings, said coatings being in the form of organic films. It relates more particularly to a method of forming copolymeric organic films by electrochemical grafting onto electrically conducting or semiconducting surfaces from aqueous electrolyte solutions containing at least one protic solvent, at least one radical polymerization initiator soluble in the protic solvent, at least one radical-polymerizable monomer, and at least one surfactant. The invention also relates to the surfaces obtained by implementing this method, to their applications, in particular for the preparation of microelectronic components, biomedical devices or screen kits, and also to the electrolyte solution employed during the method.
摘要:
The invention relates to a method for forming a polymer film on a surface that conducts or semiconducts electricity by means of electrografting. Said method uses an electrolytic solution containing a selected quantity of Brönsted acid. The invention also relates to the electrically conductive or semiconductive surfaces obtained by means of said method.
摘要:
The invention concerns a bioactive prosthesis comprising a support coated with a polymer layer with reactive functions, and a bioactive substance fixed on the prosthesis via said reactive functions so as to be gradually released on a site for implanting the prosthesis. Such prostheses are useful in the field of cardiology to avoid for example restenosis resulting from implantation of stents in coronary arteries.
摘要:
The invention relates to a method of coating a simple or complex, conducting or semiconducting surface with an organic film using at least one precursor of said organic film. The invention is characterised in that the surface is coated with the organic film through the initiated electro-grafting of said at least one precursor onto the surface by performing at least one potential scanning on the surface such that, at every point of the surface, the maximum potential of each scanning of potentials, in absolute value and in relation to a reference electrode, is greater than or equal to the potential value (Vbloc) from which the curves of a graphic representation, expressing the quantity of electro-grafted precursor on a surface identical to said surface according to the number of potential scannings, all overlap and are independent of potential Vbloc.