Synthesis and Properties of Polyetheretherketones for 3D Printing

Polyetheretherketones (PEEKs) of different molecular masses were synthesized via high-temperature polycondensation using nucleophilic substitution by varying the excess of 4,42-difluorobenzophenone. The dependences of the thermal and physicomechanical properties of the PEEKs on the intrinsic viscosity were studied. The conditions for synthesizing PEEKs that produced a polymer powder with the property set needed for high-quality 3D printing using SLS technology were determined.