Method of producing hybrid polymer-inorganic materials

Details Method of producing hybrid polymer-inorganic materials Method of producing hybrid polymer-inorganic materials

C - Chemistry, Metallurgy

08

G

C08G 83/00 (2006.01) C08J 3/05 (2006.01) C08K 9/10 (2006.01)

Patent

CA 2517204

The present invention describes a new approach to producing hybrid composite materials with multiscale morphologies. We doped polymer submicrometer spheres with semiconductor or metal (e.g. CdS or Ag, respectively) nanoparticles and used these doped microspheres as the functional building blocks in production of hybrid periodically structured materials. The preparation of hybrid polymer particles included the following stages: (i) synthesis of monodisperse polymer microspheres, (ii) in-situ synthesis of the inorganic nanoparticles either on the surface, or in the bulk of the polymer beads, and (iii) encapsulation of hybrid microspheres with a hydrophobic shell. We demonstrated that by changing the composition of the polymer beads good control could be achieved over the size of the nanoparticles.

L'invention concerne une nouvelle approche permettant de produire des matières composites hybrides au moyen de morphologies multi-échelles. Des sphères polymères, de taille inférieure au micromètre, sont dopées au moyen de nanoparticules semi-conductrices ou métalliques (par exemple CdS ou Ag respectivement) et ces dernières sont utilisées en tant que bloc de formation fonctionnels dans la production de matières structurées périodiquement. La préparation des particules polymères hybrides comprend les étapes suivantes : (i) synthèse des microsphères polymères monodispersées, (ii) synthèse in situ des nanoparticules inorganiques soit à la surface, soit dans le substrat des billes polymères, (iii) encapsulation des microsphères hybrides dans une enveloppe hydrophobe. Si on modifie la composition des billes polymères, la taille des nanoparticules peut être contrôlée.

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