The effect of poly (styrene-ran-glycidyl methacrylate) on epoxy resins and synthesized by free radical polymerization
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Poly(styrene-ran-glycidyl methacrylate) was synthesized by free radical polymerization and used to modify phenol novolac and triglycidyl p-amino phenol epoxy resins cured with aliphatic amine.Thermal and mechanical properties were investigated by differential scanning calorimetry (DSC),dynamic mechanical analysis (DMA), respectively and morphological charateristics carefully examined by sacanning electron microscope (SEM) .Contact angle studies were carried out using water at room temperature and crosslink density was calculated by theory of rubber elasticity. The results indicate that the tensile properties vary according to the molecular weight and concerntration of Poly (styrene-ran-glycidyl methacrylate) and the copolymer increases contact angle and reduces wetting and hydrophilicity of epoxy resins.