Low band-gap polymer brushes: Influence of the end-group on the morphology of core-shell nanoparticles
| Autor: | Antoine Bousquet, Laurent Billon, Christine Lartigau-Dagron, Sylvie Blanc, Adèle Gapin, Hisham Idriss, Marie-Hélène Delville |
|---|---|
| Přispěvatelé: | Institut des sciences analytiques et de physico-chimie pour l'environnement et les materiaux (IPREM), Université de Pau et des Pays de l'Adour (UPPA)-Centre National de la Recherche Scientifique (CNRS), Institut de Chimie de la Matière Condensée de Bordeaux (ICMCB), Université de Bordeaux (UB)-Institut Polytechnique de Bordeaux-Centre National de la Recherche Scientifique (CNRS), Université de Pau et des Pays de l'Adour (UPPA)-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS), Université de Bordeaux (UB)-Institut Polytechnique de Bordeaux-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS), Conseil Régional Aquitaine |
| Rok vydání: | 2020 |
| Předmět: |
Condensation polymer
Materials science Polymers and Plastics silane General Chemical Engineering Oxide Nanoparticle 02 engineering and technology 010402 general chemistry 01 natural sciences Biochemistry hybrid nanoparticles chemistry.chemical_compound Zinc oxide Materials Chemistry Environmental Chemistry Stille polycondensation ComputingMilieux_MISCELLANEOUS chemistry.chemical_classification Grafting [CHIM.MATE]Chemical Sciences/Material chemistry General Chemistry Polymer 021001 nanoscience & nanotechnology 0104 chemical sciences End-group [CHIM.POLY]Chemical Sciences/Polymers Monomer Chemical engineering chemistry Triethoxysilane low band-gap polymer 0210 nano-technology Hybrid material |
| Zdroj: | Reactive and Functional Polymers Reactive and Functional Polymers, Elsevier, 2020, 155, pp.104700. ⟨10.1016/j.reactfunctpolym.2020.104700⟩ Reactive and Functional Polymers, Elsevier, 2020, 155, 104700 (9 p.). ⟨10.1016/j.reactfunctpolym.2020.104700⟩ |
| ISSN: | 1381-5148 |
| DOI: | 10.1016/j.reactfunctpolym.2020.104700 |
| Popis: | International audience; An efficient strategy is described to prepare electron donor/acceptor hybrid nanoparticles by anchoring a low band-gap polymer onto zinc oxide spheres. Functional macromolecules, bearing triethoxysilane or catechol terminal groups, were synthesized by polycondensation, using a ternary blend reaction, i.e. mixing two monomers and an end-capper. Importantly, and in agreement with Carothers theory, the amount of end-capper allowed to control the chains molar mass. ZnO spherical nanoparticles were then grafted with the polymer chains and TEM images confirmed that core@shell materials were formed. The surface morphology of these hybrid materials was anchoring agent dependent. When silane functionalized polymers were used, cross-linked aggregates were obtained due to competition between self-condensation of silanes and reaction with ZnO surface hydroxyl groups. On the contrary, well-dispersed core-shell particles were synthesized with catechol polymers as anchoring agents. This grafting onto methodology led to patchy nanoparticles on which both zinc oxide and polymer surfaces were accessible. The optical properties of the hybrid material were ascertained by UV–visible absorption and photoluminescence to show a specific quenching of the polymer fluorescence by the metal oxide. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|
Full Text from ScienceDirect