Morphological features of composites prepared from polylactide and iron(III)−tetraphenylporphyrin complex

Abstract

A material based on polylactide and iron(III)–tetraphenylporphyrin complex is prepared. The UV electronic spectra of the samples indicate the presence of porphyrin microinclusions in the polylactide matrix. According to optical microscopy, these inclusions have a size of 50–200 μm. It is determined that the melting point of the polylactide matrix decreases by 1–3°C with increasing porphyrin content in the composition. An experiment at a temperature of 40 ± 1°C shows that the degree of crystallinity of the polylactide matrix of the compositions varies insignificantly and does not exceed the degree of crystallinity of the original pure polylactide. In this case, the melting point remains almost unchanged.