Synthesis and Characterization of Organic/Inorganic Hybrid Nanoparticles: Kinetics of Surface-Initiated Atom Transfer Radical Polymerization and Morphology of Hybrid Nanoparticle Ultrathin Films

Citations Over TimeTop 1% of 2003 papers

Abstract

The synthesis of hybrid nanoparticles was conducted by the atom transfer radical polymerization (ATRP) of styrene and (meth)acrylates from colloidal surfaces. Colloidal initiators were prepared by the functionalization of silica colloids with 2-bromoisobutyrate groups. ATRP from colloidal surfaces was then performed to attach well-defined homopolymers and block copolymers to an inorganic core. Kinetics of the ATRP of styrene (Sty), n-butyl acrylate (BA), and methyl methacrylate (MMA) under identical reaction conditions were investigated. Hybrid nanoparticles containing block copolymers of pSty-b-pBA (Mn = 22 300; Mw/Mn = 1.20), pMMA-b-pBA (Mn = 29 400; Mw/Mn = 1.28), and pBA-b-pMMA (Mn = 17 300; Mw/Mn = 1.28) were prepared, and hydrolysis of silica cores by hydrofluoric acid treatment enabled characterization of cleaved copolymers using size exclusion chromatography and 1H NMR. Ultrathin films of hybrid nanoparticles were examined using transmission electron microscopy and atomic force microscopy.

Related Papers

• → Mechanisms of n‐butanol formation in butyl acrylate latexes(2007)6 cited
• → Synthesis and characterization of poly(2-ethylhexyl acrylate) prepared via atom transfer radical polymerization, reverse atom transfer radical polymerization and radical polymerization(2013)12 cited
• → Polysulfone-graft-poly(tert-butyl acrylate): Synthesis, Nanophase Separation, Poly(tert-butyl acrylate) Hydrolysis, and pH-Dependent Iridescence(2003)33 cited
• The synthesis and application of self-crossliking acrylate soap-free adhesive(2013)
• Synthesis of Polymer Brushes from Flat Surface——Research Progress of Surface-initiated Atom Transfer Radical Polymerization(2006)