Ren, Xiaozhen published the artcileA UV-LED excited photoinitiator with low toxicity and low migration for photocurable inks, Recommanded Product: Trimethylolpropane triacrylate, the publication is Dyes and Pigments (2022), 110133, database is CAplus.
With the improvement of public environmental protection awareness, the market share of LED in the photocuring field is also expanding rapidly, so it is necessary to develop matching photoinitiators. Here, we prepared a mol. (ND-1) possessing both co-initiating and polymerizable groups, and it exhibits a good initiation effect on acrylate monomers under UV-LED irradiation The double bond conversion rate reaches up to 80% especially for tripropylene glycol diacrylate (TPGDA). Due to excellent photocuring effect of ND-1, it can initiate monomer polymerization in the presence of color paste and was successfully applied to photocurable inks. In addition, ND-1 exhibits low migration and low toxicity, which is very important to promote the application of packaging with photocurable inks in the food, medical, personal care and tobacco fields. Finally, the photoinitiation mechanism of ND-1 was explored. The free radicals not only come from the cleavage of C-O bond, but also intermol. hydrogen abstraction.
Dyes and Pigments published new progress about 15625-89-5. 15625-89-5 belongs to esters-buliding-blocks, auxiliary class Polymerization Reagents,Crosslinkers, name is Trimethylolpropane triacrylate, and the molecular formula is C15H20O6, Recommanded Product: Trimethylolpropane triacrylate.
Referemce:
https://en.wikipedia.org/wiki/Ester,
Ester – an overview | ScienceDirect Topics