SYNTHESIS AND THERMAL PROPERTIES OF COLLAGEN COMPLEXES WITH COPPER ION

Coordination complexes of collagen with copper (II) sulfate have been synthesized at various initial ratios of components for dyeing textile materials. The complex compound is formed by mixing dialyzed collagen solution and copper sulfate solution. With an increase in the amount of salt, the yield of the complex compound increases. Thermal properties of coordination complexes of collagen with copper (II) sulfate were studied using thermogravimetry and differential scanning calorimetry. The temperatures of the stage-by-stage decomposition of the complexes and the magnitudes of the thermal effects of dehydration of crystallization water have been determined.