Itaconic Acid-Based Reactive Diluents for Renewable and Acrylate-Free UV-Curing Additive Manufacturing Materials

Reactive diluents, small monomers with low viscosity, and reactive groups are widely used in UV-curable materials for additive manufacturing (3D-printing) to optimize the processability properties of cured objects. Most these such as acrylic acid esters, derived from fossil resources possess strong irritation allergenic potential. Therefore, more benign bio-based diluents UV-curing high interest. Herein, we present synthesis novel monomeric compounds itaconic acid, diesters hydroxyesters. Depending on molecular architecture, viscosity reactivity can be significantly influenced. The most promising were formulated polyester itaconates evaluated. addition resulted a significant reduction an improved curing behavior. Finally, two successfully applied processes.