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Synthesis and characterization of modified properties of poly(methyl methacrylate)/organoclay nanocomposites
Author(s) -
Zidan T. A.
Publication year - 2020
Publication title -
polymer composites
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.577
H-Index - 82
eISSN - 1548-0569
pISSN - 0272-8397
DOI - 10.1002/pc.25388
Subject(s) - organoclay , materials science , nanocomposite , thermogravimetric analysis , methyl methacrylate , thermal stability , dielectric , composite material , fourier transform infrared spectroscopy , poly(methyl methacrylate) , polymerization , polymer chemistry , chemical engineering , polymer , optoelectronics , engineering
Poly(methyl methacrylate) (PMMA)/organoclay nanocomposites are prepared and their modified thermal and dielectric properties are studied. First, 2‐methacryloyloxyethyloctadecyldimethylammonium bromide (MEODAB) was synthesized and characterized by Fourier transform infrared and proton nuclear magnetic resonance spectroscopy. The synthesized MEODAB was used as organomodifier to modify clay to form organoclay. After that PMMA/organoclay nanocomposites were synthesized by in situ solution polymerization method where methyl methacrylate was polymerized in presence of different proportions of organoclay ranging from 1 to 10 wt%. The prepared nanocomposites are characterized by X‐ray diffraction and high‐resolution transmission electron microscopy. The thermal stability of PMMA/organoclay nanocomposites is studied by means of thermal gravimetric analysis and its derivative. Dielectric properties are also investigated in which the dielectric constant and dielectric loss of different PMMA/organoclay nanocomposites are determined and discussed in the frequency range of (42 Hz‐5 MHz).