A vinyl ester monomer (VEM), namely cyclohexyl-1,1′-bis[4-(γ-2-methylphenoxy)-α-hydroxypropylacrylate], was synthesized from 1, 1-bis (3-methyl-4-glycidyloxyphenyl) cyclohexane, and acrylic acid via nucleophilic addition. The structure of VEM was confirmed by FTIR, 1H, 13C NMR, and electron impact-mass spectroscopy. Diglycidyl ethers of bisphenol-A (DGEBA) epoxy resin were toughened with varying percentages of 5, 10, and 15% (by wt) VEM using 4, 4′-diaminodiphenylmethane (DDM). VEM-modified epoxy systems were further modified with organophilic montmorillonite (OMMT) clay. OMMT clay-filled hybrid VEM-epoxy resin systems, developed in the form of casting, were characterized for their mechanical, thermomechanical, dielectric, and morphological properties.
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Chandramohan et al. (2013) studied this question.
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