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The Stability and Properties of Polystyrene/Kaolinite Nanocomposites during Synthesis via Emulsion Polymerization

2023; Multidisciplinary Digital Publishing Institute; Volume: 15; Issue: 9 Linguagem: Inglês

10.3390/polym15092094

2073-4360

José Costa de Macêdo Neto, Bruno Mello de Freitas, Adalberto Gomes de Miranda, Reinaldo de Almeida Rodrigues, Gilberto García del Pino, AC Kieling, Marcos Dantas dos Santos, Sérgio Duvoisin, Antônio Estanislau Sanches, Israel Gondres Torné, Cláudia Cândida Silva, João Carlos Martins da Costa, Roger Hoel Bello,

Iron oxide chemistry and applications

The aim of this work was to study the stability and morphological properties of polystyrene latex containing kaolinite as a filler during the process of synthesis of nanocomposites viaemulsion polymerization. Nanocomposites with 1, 3, and 5 wt% of kaolinite were prepared. Latexes with 1 to 3 wt% of kaolinite were stable during the polymerization reaction. Hydrodynamic diameters of 93.68 and 82.11 nm were found for latexes with 1 and 3 wt% of kaolinite, respectively. The quantities of 1 to 3 wt% of kaolinite added during the reaction did not influence the reaction conversion curves or the number of particles. X-ray diffraction (XRD) and unconventional techniques of scanning electron microscopy (SEM) and high-resolution transmission electron microscopy (HRTEM) showed the presence of exfoliated and intercalated structures of the kaolinite.