Table summarises the number average molecular weight (Mn) and weight average molecular weight (Mw) of the polymer in the produced materials. Analysis of the Mn and Mw parameters shows that their values increase with higher filler content in the composite. This trend is particularly evident in samples containing microhydroxyapatite. This can be explained by the fact that HAp, as a ceramic material with a higher heat capacity than the polymer, absorbs some of the heat generated during processing, thus limiting polymer degradation. As a result, the molecular weight of the reference sample without filler reaches the lowest values, since the pure polymer undergoes the greatest degradation. Table also shows the absolute density values determined for the materials tested. As expected, the density of the material increases as the denser filler content increases.