the present invention relates to a modified polyaryletherketone polymer with chemically modified surfaces with azides , alkynes , thiols , maleimides , sulfonylazides or thio acids , suitable for “ click ” reactions and to a process to obtain it . it also relates to the conjugated biomaterials derived thereof , paek type materials with surfaces modified with a rgd and / or ogp 10 - 14 peptidomimetics and to a process to obtain it . these materials are particularly useful for manufacturing medical devices . finally , the present invention also relates to a fluorescent paek material .