Diazonium salt-based photoiniferter as a new efficient pathway to clay–polymer nanocomposites. Issue 91 (15th September 2016)

• Record Type: Journal Article
• Authors: Salmi-Mani, Hanène; Ait-Touchente, Zouhair; Lamouri, Aazdine; Carbonnier, Benjamin; Caron, Jean-François; Benzarti, Karim; Chehimi, Mohamed M.
• Is Part Of: RSC advances. Volume 6:Issue 91(2016)
• Page Start: 88126
• Page End: 88134
• Publication Date: 2016-09-15
• Subjects: Chemistry -- Periodicals; 540.5
• DOI: 10.1039/c6ra14713e
• Languages: English
• ISSNs: 2046-2069

Abstract

Abstract : Diazonium salts were used to prepare clay–polymer nanocomposites by living free radical photopolymerization of glycidyl methacrylate. The resulting intercalated nanocomposites have an organic mass loading of ∼41 wt% and a polymer-rich surface. Abstract : Clay–polymer nanocomposites were prepared by living free radical photopolymerization initiated from a lamellar clay-anchored photoiniferter resulting from a cation exchange reaction of sodium by diethyldithiocarbamate benzyldiazonium tetra-fluoroborate salt. The success of the cation exchange process, followed by iniferter graft polymerization of glycidyl methacrylate (GMA) on clay nanoplatelets was confirmed by X-ray photoelectron spectroscopy (XPS), Fourier transform infrared spectroscopy (FTIR), X-ray diffraction (XRD), transmission electron microscopy (TEM) and thermogravimetric analysis (TGA). Thereby, the original cation exchange method induced by diazonium salt produces intercalated nanocomposite materials with an important organic mass loading around 41 wt%. More importantly, the content of the organic component included in the final nanocomposite material could be controlled by the diazonium salt concentration used during the synthesis.