Review of quantitative and qualitative methods for monitoring photopolymerization reactions

Photopolymerization processes are currently one of the leading methods used in various areas of the chemical industry. Despite the many advantages and the simplicity of the light-initiated polymerization process itself, there are a number of parameters that are crucial to the performance and efficiency of the process, and that also affect economic or environmental specifications. As a result, the ability to quickly control the process in real time is essential. There are a number of techniques that enable the on-line control of photopolymerization, and this paper provides a broad overview of the available methods, both for laboratory and industrial use, that allow qualitative and quantitative analysis of the process. This review provides a description of each research methodology along with a description of the parameters that can be monitored and controlled using the technique.