Low-temperature photopolymerization and post-cure characteristics of acrylates

摘要

Near-infrared spectroscopy was used to investigate the post-cure characteristics of acrylates polymerized from -75 °C up to room temperature.The results obtained showed that the double bond conversion increased with increasing initiator concentration.Post-cure was much more striking for samples cured at lower temperatures.The chemical structure of monomer and photoinitiator had a great effect on the post-cure process.The greater the functionality,the lower the final double bond conversion and the more distinct the post-cure effect.