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) and more flexibility for the cured sample. An ink was developed based on the monomers and successfully 3D printed on a digital light processing machine. In the absence of toxic isocyanates and tin compounds, the non-isocyanate route can be employed to develop urethane-methacrylates with desirable photo-reactivity and physicomechanical properties as good candidates to formulate inks for 3D printing of biomedical materials.
Singh et al. (Wed,) studied this question.