Various mechanical tests demonstrated the ability of the fillers to reinforce the PBS-DLS copolymer in proportion to their content. In dynamic thermo-mechanical tests and tensile tests, the strengthening was significantly more effective in composites with µHAp whiskers than with nHAp particles Overall, the developed materials exhibited good processability, thermal stability, bioactivity and biocompatibility with the mouse fibroblast cell line L929, making them promising candidates for biomedical applications, particularly in bone tissue engineering.