Synthesis and Characterization of Photocurable Difunctional Monomers for Medical Applications

Area of Science:

• Polymer Chemistry
• Biomaterials Science
• Photochemistry

Background:

• Photocurable materials enable rapid liquid-to-solid transitions, gaining traction in medicine.
• While dental applications are common, soft tissue repair materials remain underdeveloped.

Purpose of the Study:

• Synthesize a difunctional methacrylate monomer for soft tissue photocuring.
• Evaluate its properties and compare it to existing materials like PhotoBioCure®.

Main Methods:

• Two-step synthesis catalyzed by dibutyltin dilaurate.
• Spectroscopic and chromatographic analysis for structure and molecular weight determination.
• Photopolymerization kinetics, mechanical testing, 3D printability, and cytotoxicity assays.

Main Results:

• Successful synthesis of difunctional methacrylate monomers.
• Mechanical properties (3-4 MPa tensile strength/modulus) suitable for soft tissues.
• High cell viability (97%) indicating biocompatibility.
• Demonstrated 3D printability.

Conclusions:

• Difunctional methacrylate monomers can be photopolymerized into flexible solids.
• These materials hold significant potential for soft tissue repair and other biomedical applications.