Synthesis and Characterization of Hybrid Clay/Poly (N,N-dimethylaminoethyl methacrylate) Nanocomposites

摘要

Four quaternary ammonium salt monomers (2a-d) were synthesized from N,N-dimethylaminoethyl methacrylate and subsequently polymerized to afford cationic polymers (3a-d). The synthesized monomers and polymers were characterized by Fourier transform infrared (FTIR) and proton nuclear magnetic resonance (H-1 NMR) spectroscopy. Molecular weights of the synthesized polymers were determined using gel permeation chromatography. Polymer/clay nanocomposites (4a-d) were prepared using solution-intercalation method and characterized by FTIR, Xray diffraction, high-resolution transmission electron microscopy, energy dispersive X-ray, and thermogravimetric analysis. Data analysis showed that polymer/clay nanocomposites have intercalated structure. The dielectric properties of the polymer/clay nanocomposites were studied as a function of both temperature and frequency. (C) 2015 Society of Plastics Engineers