Gencoglu, Turkan published the artcileA Water Soluble, Low Migration, and Visible Light Photoinitiator by Thioxanthone-Functionalization of Poly(ethylene glycol)-Containing Poly(β-amino ester), Safety of Trimethylolpropane triacrylate, the publication is Macromolecular Chemistry and Physics (2022), 223(13), 2100450, database is CAplus.
A novel photoinitiator (PI) is described here for low ecol. impact, p(PEGDA575-TX): It is water soluble, polymerizable, thioxanthone (TX) functional, and is a one-component poly(ethylene glycol)-based poly(β-amino ester). The PI is synthesized in one step via classical aza-Michael addition reaction between poly(ethylene glycol) diacrylate (Mn = 575 D) and amine functionalized TX (2-(2-aminoethoxy)-9H-thioxanthen-9-one). It absorbs at ≈ 404 nm (ε = 14 000-44 309) in water and can photodecompose with or without additives such as Et 4-(dimethylamino)benzoate (EDB) and bis-(4-tert-butylphenyl)-iodonium hexafluorophosphate (Iod). Although it is an effective one-component visible light PI for free radical polymerization of di- and tri(meth)acrylates, EDB or Iod will be favorable for synergistic effect. p(PEGDA575-TX) has higher initiating reactivity, reducing ability of oxygen inhibition and migration stability compared to TX, which make it environmental friendly.
Macromolecular Chemistry and Physics 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, Safety of Trimethylolpropane triacrylate.
Referemce:
https://en.wikipedia.org/wiki/Ester,
Ester – an overview | ScienceDirect Topics