PFAS Regulation Update There has been a proliferation of state legislative and regulatory activity involving per- and polyfluoroalkyl substances (PFAS), a class of man-made chemicals used for more than 70 years in a variety of products, such as nonstick cookware, firefighting foam, waterproofing and stain-resistant coatings, and in industrial manufacturing. PFAS in groundwater … [Read more...] about Regulatory News
2019 Issue 2
Counting Radicals: Methods to Measure Radiation Yields of Monomers in EB Polymerization
By Nicole L. K. Thiher and Julie L. P. Jessop, University of Iowa, and Sage M. Schissel, PCT Ebeam and Integration, LLC Introduction 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, relatively few studies have examined … [Read more...] about Counting Radicals: Methods to Measure Radiation Yields of Monomers in EB Polymerization