The photoinitiator (P1) plays a key role in UV-curable systems by generating the reactive species, free radicals, or ions, which initiate the polymerization of the multifunctional monomers and2 This component has a great influence on.
Radiation curing is a welt established and highly efficient method for crosslinking of coatings, printing inks 1 The photoinitiator , the key component in such systems is responsible for light absorption and generation of reactive species like radicals and/or cations. The photochemical
Mu!ti-photon three-dimensional micro- and nanofabrication (3DM) is a powerful technique for creating complex 3D microscale structures of the type needed for micro-electromechanical systems (MEMS), micro-optics, and microfluidics.
Various orthopaedic methods for the fixation of fractured bone or after removal of bone tumours are currently in clinical use. Autografts, tissue obtained from another site in the same subject of the same species, are the gold standard for tissue repair and substitution.
A new type of urethane acrylate oligomers, which have grafted photoinitiators (PIs), is described. Commercially available PIs with hydroxylalkyl substituents were grafted in a level 0.5-5.0 wt.% to oligomers during oligomers syntheses.
The authors recently found many new addition reactions of oxetanes with certain reagents such as phenols and carboxylic acids using certain quaternary onium salts or crown ether complexes as catalysts.