Abstract: The invention relates to a porous material comprising particles of polymer P assembled by a block copolymer, said block copolymer comprising at least one block consisting of a polymer sequence immiscible with polymer P, and at least two blocks consisting of polymer sequences which are miscible with polymer P. The invention also relates to films produced with this material.

Abstract: The invention relates to a porous material comprising particles of polymer P assembled by a block copolymer, said block copolymer comprising at least one block consisting of a polymer sequence immiscible with polymer P, and at least two blocks consisting of polymer sequences which are miscible with polymer P. The invention also relates to films produced with this material.

Abstract: The present invention relates to the field of hydrophobic solid surfaces, and more particularly to polyvinylidene fluoride (PIMP) membranes having a superhydrophobic surface. The invention also relates to the process for preparing these membranes and also to the industrial applications thereof. The PVDF membranes according to the invention comprise a superhydrophobic surface comprising a structure that is porous on the nanometer scale and interconnected crystalline nodules of micrometer size.

Abstract: The invention relates to spherical particles formed by polymer chains containing approximately from 30 to 10000 monomer units derived from monocyclic polycyclic alkene polymerization, wherein at least one monomer unit is substituted by an R chain including ethylene polyoxide which is optionally covalently linked to the polymer units through a hydrolyzable bridge and substituted by a reactive function, optionally engaged in a link with an active principle or a biological molecule such as protein, wherein the chain R is covalently linked to the monomer units. The use of the inventive spherical particles for preparing pharmaceutical and cosmetic compositions or surface coatings is also disclosed.

Abstract: The invention relates to biomaterials comprising a carrier material to which surface spherical particles are covalently linked, wherein said spherical particles are formed by polymer chains containing approximately from 30 to 10000 monomer units derived from monocyclic polycyclic alkene polymerisation, are substituted by an R chain comprising ethylene polyoxide which is optionally covalently linked to said polymer units through a hydrolysable bridge and substituted by a reactive function engaged in a link with an active principle, said chain R being covalently linked to said monomer units. The use of the inventive biomaterials for preparing pharmaceutical and cosmetic compositions or surface coatings is also disclosed.