Controllable synthesis of raspberry-like PS-SiO₂ nanocomposite particles via Pickering emulsion polymerization.

ABSTRACT: This paper presents a simple and controllable method for the synthesis of monodisperse nanometer-sized organic-inorganic raspberry-like polystyrene (PS)-SiO₂ nanocomposite particles (NCPs) via Pickering emulsion polymerization, by simply using a silane coupling agent, 3-(trimethoxysilyl)propyl methacrylate (MPS), as an auxiliary monomer and controlling its hydrolysis/condensation processes and amount. In this method, when MPS was stirred in acidic water with styrene (St) for a period of time, and then a basic silica solution added, raspberry-like PS-SiO₂ NCPs were directly obtained after the polymerization. The whole process needs neither surface treatment for the silica particles nor additional surfactants or stabilizers. We propose that a silica-stabilized Pi

SUBMITTER: Zhang X 

PROVIDER: S-EPMC9077750 | biostudies-literature | 2018 Jan

REPOSITORIES: biostudies-literature