Photopolymerization Reactions: On the Way to a Green and Sustainable Chemistry

Abstract

Abstract:The present paper reviews some aspects concerned with the development of green technologies in the photopolymerization area: use of visible light sources (Xe and Hg-Xe lamps, diode lasers), soft irradiation conditions (household lamps: halogen lamp, fluorescence bulbs, LED bulbs), sunlight exposure, development of very efficient photoinitiating systems and use of renewable monomers. The drawbacks/breakthroughs encountered when going on the way of a greener approach are discussed. Examples of recent achievements are presented.

Green LED as an Effective Light Source for Curing Acrylate-Based Dental Resins in Combination with Irgacure 784

“…Photopolymerization [1] has become an essential tool in three-dimensional (3D) printing [2] and photolithography [3], in the construction of polymer electronics [4], optical materials [5], membranes [6], and coatings, and in surface modifications. The most common photopolymerization monomers are cyclic or linear epoxides (cationic) and acrylate-based monomers (radical) [1].…”

“…The most common photopolymerization monomers are cyclic or linear epoxides (cationic) and acrylate-based monomers (radical) [1]. Acrylate-based photopolymers are important materials for cardiovascular applications [7], for in vivo drug delivery [8], and for minimally invasive procedures.…”

Photopolymerization of electroactive film applied to full polymer electrochromic device

“…Photopolymerization has recently been proposed for the fabrication of solar cells [12,13], electrochromic and photoelectrochromic devices [14,15]. Photopolymerization reactions have been developed for many years [16,17], which involve a polymerizable radical or cationic matrix. Free radical photopoly-merization (FRP) is used to polymerize unsaturated monomers such as acrylates, whereas cationic photopolymerization (CP) is used to polymerize heterocyclic monomers, e.g.…”

Difluoroboranyl derivatives as efficient panchromatic photoinitiators in radical polymerization reactions

“…Thus, the spectral properties of the PI have a big impact on the polymerization rate, R p , which is directly connected with the amount of light absorbed [34]. As shown in Figs.…”