Knowledge base

Free radical polymerization of acrylic monomers, oligomers or polymers has many applications in the UV curing area. Since the efficiency of a photopolymerization reaction is governed for a part by the reactivity of the photoinitiating system, there is still a growing interest in the study of the photophysical and photochemical processes involved in

UV curing systems are widely used in various applications, e.g., coatings, printing inks, adhesives, photoresist, and solder masks. UV curing systems are low VOC, highly productive, and energy saving. Multi-functional acrylate monomers and oligomers are mainly used and the cured materials show excel!ent physical and/or thermal properties. However,

The use of photoinitiators in initiating the free-radical and cationic curing of reactive monomer systems is essential in ensuring efficient 12 While it is possible to use very high intensity radiation to induce self curing without adding small molecule photoinitiators, the rate and extent of curing will be low. This not only leads to long curing t

Radiation curing is a well established technology increasingly used in industrial applications. Drivers for this development are several unique features providing economic and ecological advantages to the user:• Use of high solid formulations complying with existing and future VOC regulations•, Excellent control of the curing process• Low processin

Radiation curing in organic photopolymers has proved its value in terms of high technical performance with both ecological and economic advantages. Understanding and controlling the photochemical processes both in time and space represent the research in our Laboratory for more than twenty years. Nowadays, organic-inorganic sol-gel materials have g

Ultraviolet polymerisation offers new perspectives in product development and pollution control. The major solvents used in traditional coating polymers are volatile organic components (VOC's) which generate ozone from the reaction with oxides of nitrogen. UV curable coatings contain no solvent, so emission and flammability are not a concern. The p

The acrylate radicals produced by addition of aminoalkyl radicals to an acrylate unit have been directly observed by transient absorption spectroscopy. These acrylate radicals are characterized by a strong absorption in the visible part of the spectrum allowing an easy study of their chemical reactivity. Therefore, a new method for the determinatio

Radiation curing is one of the most economical and environmentally compatible curing technologies known. It has successfully enabled numerous industrial applications over recent decades. There still remain, however, challenges that prevent penetration into broader areas of interest. For example, in practice there are intrinsic limitations associate