Open AccessPREPARATION AND CHARACTERIZATION OF SIO2/POLY(METHYL METHACRYLATE) CORE/SHELL NANOCOMPOSITES VIA RAFT POLYMERIZATION
Author(s) -
Long Giang Bạch
Publication year - 2018
Publication title -
vietnam journal of science and technology/science and technology
Language(s) - English
Resource type - Journals
eISSN - 2815-5874
pISSN - 2525-2518
DOI - 10.15625/2525-2518/54/1a/11839
Subject(s) - raft , chain transfer , thermogravimetric analysis , materials science , reversible addition−fragmentation chain transfer polymerization , polymer chemistry , polymerization , nanocomposite , fourier transform infrared spectroscopy , methyl methacrylate , chemical engineering , x ray photoelectron spectroscopy , methacrylate , nanoparticle , silane , radical polymerization , polymer , nanotechnology , composite material , engineering
This article describes the fabrication of SiO2 nanoparticles grafted with poly(methyl methacrylate) (PMMA) via a fascinating reversible addition-fragmentation chain transfer (RAFT) polymerization by adopting “grafting from” approach. The silane coupling agent, S-benzyl S’-trimethoxysilylpropyltrithiocarbonate, was anchored onto SiO2 nanoparticles in a simple procedure using a ligand exchange reaction. RAFT agents-anchored SiO2 nanoparticles were then used for the surface-initiated RAFT polymerization of MMA to fabricate structurally well-defined, core-shell SiO2-g-PMMA nanocomposites. The structure and properties of the as-synthesized nanocomposites were investigated by Fourier Transformed Infrared Spectrophotometry (FT-IR), X-ray Photoelectron Spectroscopy (XPS), Thermogravimetric analysis (TGA), Field Emission Scanning Electron Microscopy (FE-SEM).