Synthesis of Water-Based Dispersions of Polymer/TiO2 Hybrid Nanospheres
AbstractWe develop a strategy for preparing water-based dispersions of polymer/TiO2 nanospheres that can be used to form composite materials applicable in various fields. The formed hybrid nanospheres are monodisperse and possess a hierarchical structure. It starts with the primary TiO2 nanoparticles of about 5 nm, which first assemble to nanoclusters of about 30 nm and then are integrated into monomer droplets. After emulsion polymerization, one obtains the water-based dispersions of polymer/TiO2 nanospheres. To achieve universal size, it is necessary to have treatments with intense turbulent shear generated in a microchannel device at different stages. In addition, a procedure combining synergistic actions of steric and anionic surfactants has been designed to warrant the colloidal stability of the process. Since the formed polymer/TiO2 nanospheres are stable aqueous dispersions, they can be easily mixed with TiO2-free polymeric nanoparticle dispersions to form new dispersions, where TiO2-containing nanospheres are homogeneously distributed in the dispersions at the nanoscale, thus leading to various applications. As an example, the proposed strategy has been applied to generate polystyrene/TiO2 nanospheres of about 100 nm in diameter. View Full-Text
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Jin, L.; Wu, H.; Morbidelli, M. Synthesis of Water-Based Dispersions of Polymer/TiO2 Hybrid Nanospheres. Nanomaterials 2015, 5, 1454-1468.
Jin L, Wu H, Morbidelli M. Synthesis of Water-Based Dispersions of Polymer/TiO2 Hybrid Nanospheres. Nanomaterials. 2015; 5(3):1454-1468.Chicago/Turabian Style
Jin, Lu; Wu, Hua; Morbidelli, Massimo. 2015. "Synthesis of Water-Based Dispersions of Polymer/TiO2 Hybrid Nanospheres." Nanomaterials 5, no. 3: 1454-1468.