Photochemistry and photoinduced chemical crosslinking activity of several type II commercial photoinitiators in acrylated prepolymers

Mechanistic Study of Tetrahydrofuran Polymerization Photoinitiated by a Sulfonium Salt/Thioxanthone System

“…Photoreduction of TX triplets by other reductants, like amines, involving electron transfer are also known. [37,43] Photolysis Experiments 425 nm occurs at the same wavelength as the transient spectrum of the TX + 9 cation radical. No changes are observed in the absorption spectrum of TX when it is photolysed in the presence of THF alone.…”

A thioxanthone‐based visible photoinitiator

“…The TX derivatives have extended absorption up to 420 nm depending upon the type of substitution 38. Figure 1 demonstrates the comparison of the absorption spectrum of TX‐MPM with compounds TX and MPM.…”

Evaluation of molecular weight of original epoxy acrylates in UV-cured resins by pyrolysis-gas chromatography in the presence of organic alkali

“…Scheme 1 illustrates a typical formation pathway of the UV-cured BEA resin using benzophenone (BP) as a photoinitiator. By absorbing UV-light, BP abstracts a hydrogen atom from an H-donor molecule such as residual solvent, catalyst and the UV-curable prepolymer itself in the environment with the formation of initiating species [18,19]. The procedure for preparing UV-cured resin samples is basically the same as described in our previous Table 1 UV-curable acrylic esters and photointiator used in this study Acrylic esters and photoinitiator Chemical structure paper [15].…”