Publication Type : Journal Article
Publisher : Chemistry: A European Journal
Source : Chem. - Eur. J. (in press). DOI: 10.1002/chem.202301844 IF: 5.02
Url : https://pubmed.ncbi.nlm.nih.gov/37503865/
Campus : Coimbatore
School : School of Artificial Intelligence - Coimbatore
Center : Computational Engineering and Networking
Year : 2023
Abstract : Applications of photochemistry are becoming very popular in modern-day life due to its operational simplicity, environmentally friendly and economically sustainable nature in comparison to thermochemistry. In particular photoinduced radical polymerisation (PRP) reactions are finding more biological applications and especially in the areas of dental restoration processes, tissue engineering and artificial bone generation. A type-II photoinitiator and co-initiator-promoted PRP turned out to be a cost-effective protocol, and herein we report the design and synthesis of a new efficient co-initiator for a PRP reaction via a barrierless sequential conjugate addition reaction. Experimental mechanistic observations have been further complemented by computational data. Time for newly synthesised 1,2-benzenedithiol (DTH) based co-initiator promoted polymerisation of urethane dimethacrylate (UDMA, 70 %) and triethylene glycol dimethacrylate (TEGDMA, 30 %) in presence of 450 nm LED (15 W) under the aerobic conditions is 38 seconds. Polymeric material has high glass transition temperature, improved mechanical strength (860 BHN) and longer in-depth polymerisation (3 cm).
Cite this Research Publication : Asrar Ahmad, Shakir Ali Siddiqui, Garvisha Mittal, N. Sukumar, Kshatresh Dutta Dubey, Ajoy Kapat, "Design and Synthesis of Novel Co-Initiators via Base Catalysed Sequential Conjugate Reaction: Application in Photoinduced Radical Polymerisation Reaction", Chem. - Eur. J. (in press). DOI: 10.1002/chem.202301844 IF: 5.02