Development of the Three-Component Photoinitiating Systems for Radical Polymerization

Call for Papers

In recent years, there has been a growing interest in the photoinduced polymerizations of many monomers and oligomers. Photoinitiated free radical polymerization is a widely explored technology with a wide range of industrial applications. In the photopolymerization, photoinitiators play an important role since even the most reactive acrylate monomers hardly polymerize when exposed to the pure form of light. The development of new photoinitiating systems (PIS) remains an interesting challenge. In specific areas, for example in graphic arts or in conventional clear coat and overprint varnish applications, the photoinitators must exhibit particular properties among them a high photochemical reactivity leading to high curing speeds. The initiation of radical polymerization under visible light can occur in the presence of the dye alone (one component) or in presence of multicomponent system composed of dye (sensitizer) and second component acting as coinitiator. Commonly, the visible-light activated initiators are two-component systems. The intrinsic characteristics of such photoinitiating system lead to the numerous kinetc limitiations. For example, bimolecular quenching processes, the quenching of an excited triplet state by oxygen ormonomers, can stop the initiation of polymerization and result in the loss of absorbed energy. Like the two-component system, the three-component PIS include a light-absorbing moiety, and an electron acceptor (EA). In such systems, the third component is supposed to scavenge the chain-terminating radicals that are generated by the photoreaction between the other two components or produce an additional initiating radical.

This issue will be focused on the potential of radical polymerization, including the development of multicomponent photoinitiating systems.

We invite authors to submit original research and review articles describing the latest scientific and technological research results that will stimulate the continuing efforts to understand and develop the photoinitiating properties of multicomponent PIS for radical polymerization. Potential topics include, but are not limited to:

• Dyeing photoinitiating systems
• Spectral, electrochemical, and structural properties
• Energy transfer, electron transfer process, and/or proton transfer
• Mechanism of free radicals generation
• Kinetics studies
• Industrial applications

Before submission authors should carefully read over the journal's Author Guidelines, which are located at http://www.hindawi.com/journals/ijp/guidelines/. Prospective authors should submit an electronic copy of their complete manuscript through the journal Manuscript Tracking System at http://mts.hindawi.com/ according to the following timetable:

Lead Guest Editor

• Janina Kabatc, Faculty of Chemical Technology and Engineering, University of Technology and Life Sciences, 85225 Bydgoszcz, Poland

Guest Editors

• Maria L. Gómez, Departamento de Química, Universidad Nacional de Río Cuarto, Río Cuarto, Argentina
• Xavier Allonas, Department of Photochemistry, Haute Alsace University, 68200 Mulhouse, France
• Zbigniew Czech, Institute of Chemical Organic Technology, West Pomeranian University of Technology, 70310 Szczecin, Poland
• Katarzyna Jurek, Faculty of Chemical Technology and Engineering, University of Technology and Life Sciences, 85225 Bydgoszcz, Poland