Abstract
The low polymerization tendency of allyl compounds can be enhanced by thiol–ene polymerization systems. In this study, allyldiphenyl phosphine oxide (ADPPO) containing thiol–ene based photocured coatings were prepared with the aim to improve their final thermal and flame retardant properties. The photopolymerization kinetics of thiol–ene based formulations were investigated by real-time infrared spectroscopy. The incorporation of ADPPO into the polymer chains was confirmed by monitoring the conversion of acrylate double bonds and measuring the gel content of the crosslinked films. The experiments showed that as the amount of ADPPO was increased, thermal and flame retardant properties of the coatings were also increased.
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