An initiator- and catalyst-free hydrogel coating process for 3D printed medical-grade poly(ε-caprolactone)

Additive manufacturing or 3D printing as an umbrella term for various materials processing methods has distinct advantages over many other methods, including the ability to generate highly complex shapes and designs. However, performance of any produced part not only depends on material used its shape, but is also critically dependent surface properties. Important features, such wetting fouling, depend mainly immediate energy. To gain control chemistry post-processing modifications are generally necessary, since it′s a feature additive manufacturing. Here, we report use initiator catalyst-free photografting photopolymerization hydrophilic modification microfiber scaffolds obtained from hydrophobic medical-grade poly(ε-caprolactone) via melt-electrowriting. Contact angle measurements Raman spectroscopy confirms formation more coating poly(2-hydroxyethyl methacrylate). Apart modification, observe bulk polymerization, which expected this method, currently limits controllability procedure.