Ingénierie et Architectures Macromoléculaires

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Polymers Bearing Heteroatoms


Synthesis of monomers, telomers and (co)polymers that contain different heteroatoms (phosphorus, silicon, fluorine, chlorine and nitrogen).




Study of the (co)polymerization mechanisms (assessment of the reactivity ratios), and also of the specific properties of the resulting (co)polymers.

Use of appropriate synthetic pathways to incorporate heteroatoms ;



i) for fluorine : radical telomerization, free radical (co)polymerization, Controlled Radical (co)polymerization ;


ii) for silicon : cyclosiloxane ROP, hydrosilylation, polyaddition / polycondensation ;


iii) for phosphorus : Arbuzov and coupling reactions.


Synthesis of copolymers with controlled architectures : monofunctional, telechelics, alternated copolymers, gradient and block copolymers, graft copolymers, cross-linked copolymers and hybrid copolymers. Preparation of nanocomposites based on fluorine and silicon-containing polymers.


Applications


Obtaining of new functional (hydrophobic and/or lipophobic) coatings, adhesives, anti-adhesives, non-bioaccumulable fluorinated surfactants, high-performance elastomers (no solvent swelling, high thermal stability and low glass transition temperatures…), preparation of additives for paints or auto-extinguible foams (surfactants, compatible additives,…). Use as flame retardant materials, anti-corrosive compounds, fuel cell membranes (protonic, alkaline, quasi-anhydrous), polymer electrolytes, fluorinated solvents and separators for Lithium-ion batteries, dielectric or piezoelectric polymers, and photovoltaic devices…

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