New Method for Real-time Monitoring of Photopolymerization by UV–Vis Spectroscopy
✍ Scribed by Michael Schmitt
- Publisher
- John Wiley and Sons
- Year
- 2011
- Tongue
- English
- Weight
- 571 KB
- Volume
- 212
- Category
- Article
- ISSN
- 1022-1352
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✦ Synopsis
Abstract
A new technology to measure the kinetics of bulk radical polymerization is presented. This technology is easy to connect with all systems using irradiation light, including Raman and IR measurement setups. The curing kinetics of commercially available offset printing dyes (acrylic esters) with initiators have been studied in situ in real‐time by light transmission. The setup consists of a slightly modified diode array UV–Vis spectrometer with a dual purpose xenon arc flash lamp light source. The lateral dependency (irradiation dosage) of the change in the transmitted light has the potential to be interesting for scientific and industrial applications. In addition, options for kinetics studies and quantum efficiencies are introduced to expand the possibilities of studying the polymerization processes. magnified image