Hydrophobic terpolymers ethylene/vinyl alcohol/vinyl stearate, of three different compositions, have been obtained by reaction of a commercial ethylene/vinyl alcohol copolymer (EVAL) with stearoyl chloride at different molar ratios. The obtained polymers were characterized by means of ~1H NMR, transmission FT-IR spectroscopy, differential scanning calorimetry and thermogravimetric analysis. The hydrophobic character of the film surfaces was investigated by IR-ATR and by determining their surface and critical tensions. It was seen that it increased with increasing degree of substitution of the hydroxy groups of EVAL.
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