Copoly(phthalazinone biphenyl ether sulfone) (PPBES) as a commercially available polyarylether is a promising orthopaedic implant material because its mechanical properties are similar to bone. However. the bioinert surface of polyarylether causes some clinical problems after implantation. which limits its application as an implant material. https://toyscyclers.shop/product-category/educational-toys/