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Abstract Message aimed at improving the mechanical properties and thermal behavior of the material polystyrene was prepared three mixtures of 1 - Poly Styrene + Styrene-Butadiene Rubber 2 - Poly Styrene + Styrene-Butadiene Rubber 3 - Poly Styrene + Styrene-Butadiene Rubber < br> mixtures were prepared in a manner to confuse Ansharri The letter includes the four main chapters: - 1 - a general introduction to polymers and structural composition and properties of its general 2 - How to mechanical characterization using ultrasonic wave technology and characterization of polymers using DSC technique 3 - materials used and how to mix and cast and methods of measuring molecular weight, density, mechanical properties and thermal properties and conditions of measurement 4 - results that have been reached. |