Measuring Radiation Yield in EB Polymerizations via Raman Spectroscopy

Nicole Kloepfer, University of Iowa

Abstract:For photopolymerization, many methods exist to determine kinetic parameters, such as quantum yield of photoinitiators and rate of photoinitiation. However, due to the harsh conditions of the electron beam (EB), relatively few studies have examined the kinetics of EB polymerization. Here, a new method for determining rate of initiation and radiation yield (the number of radicals per 100 eV delivered) using Raman spectroscopy is presented, which will enable more detailed kinetic studies of EB polymerization.