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Efficient Synthesis of Snowman- and Dumbbell-like Silica/Polymer Anisotropic Heterodimers through Emulsion Polymerization Using a Surface-Anchored Cationic Initiator

hal.structure.identifierLaboratoire de Chimie, Catalyse, Polymères et Procédés, R 5265 [C2P2]
dc.contributor.authorPARVOLE, Julien
hal.structure.identifierLaboratoire de Chimie, Catalyse, Polymères et Procédés, R 5265 [C2P2]
dc.contributor.authorCHADUC, Isabelle
hal.structure.identifierLaboratoire Interdisciplinaire sur l'Organisation Nanométrique et Supramoléculaire [LIONS]
dc.contributor.authorAKO, Komla
hal.structure.identifierLaboratoire Interdisciplinaire sur l'Organisation Nanométrique et Supramoléculaire [LIONS]
dc.contributor.authorSPALLA, Olivier
hal.structure.identifierLaboratoire Interdisciplinaire sur l'Organisation Nanométrique et Supramoléculaire [LIONS]
dc.contributor.authorTHILL, Antoine
hal.structure.identifierCentre de recherches Paul Pascal [CRPP]
dc.contributor.authorRAVAINE, Serge
hal.structure.identifierInstitut de Chimie de la Matière Condensée de Bordeaux [ICMCB]
dc.contributor.authorDUGUET, Etienne
hal.structure.identifierLaboratoire de Chimie, Catalyse, Polymères et Procédés, R 5265 [C2P2]
dc.contributor.authorLANSALOT, Muriel
hal.structure.identifierLaboratoire de Chimie, Catalyse, Polymères et Procédés, R 5265 [C2P2]
dc.contributor.authorBOURGEAT-LAMI, Elodie
dc.date.issued2012
dc.identifier.issn0024-9297
dc.description.abstractEnWe report a novel original synthetic route to hybrid dissymmetrical snowman- and dumbbell-like silica/polymer colloidal particles through emulsion polymerization of methyl methacrylate (MMA) or styrene using a bicationic initiator previously anchored on the silica surface. Anisotropic particles with a polymer nodule attached to a single silica sphere were successfully obtained in high yield in the presence of a mixture of nonionic and anionic surfactants under optimized initiator concentration conditions. Both nonionic surfactant and cationic initiator were key ingredients in controlling particle morphology as evidenced by transmission electron microscopy. By optimizing the silica content and the surfactant composition, latexes with a latex-to-silica seed number ratio (NLatex/NSilica) close to 1 were produced using either MMA or styrene as monomers. Their shapes evolved from snowman-like and reverse snowman-like at low and high conversions to dumbbell-like for intermediate conversions. The evolution of particle morphology with time provided insights into the mechanism of composite particles formation.
dc.description.sponsorshipTowards Colloidal Molecules and Functional Materials - ANR-07-BLAN-0271
dc.language.isoen
dc.publisherAmerican Chemical Society
dc.subject.enEmulsion Polymerization
dc.subject.enSilica Polymer
dc.title.enEfficient Synthesis of Snowman- and Dumbbell-like Silica/Polymer Anisotropic Heterodimers through Emulsion Polymerization Using a Surface-Anchored Cationic Initiator
dc.typeArticle de revue
dc.identifier.doi10.1021/ma301355g
dc.subject.halChimie/Polymères
bordeaux.journalMacromolecules
bordeaux.page7009-7018
bordeaux.volume45
bordeaux.issue17
bordeaux.peerReviewedoui
hal.identifierhal-00733814
hal.version1
hal.popularnon
hal.audienceInternationale
hal.origin.linkhttps://hal.archives-ouvertes.fr//hal-00733814v1
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