In this study, conversion as a function of dose was measured for a series of (meth)acrylates during electron beam (EB) and x-ray polymerization to characterize the impact of the irradiation mode. Monomer chemistry was shown to be a key variable in the comparison of the two technologies, providing guidance for application choices. Part 1 provides the Introduction, Experimental … [Read more...] about Comparison of EB- and X-Ray-Initiated Polymerizations for Extending Radiation Curing Opportunities, Part 1
Articles
Cationic UV Polymerization Kinetics
In the 1st Quarter, 2023 edition of “Professor’s Corner,” we discussed the reaction kinetics of free radical UV polymerization. 1 In this edition, we will discuss the kinetics of cationic UV polymerization. Both processes involve “chain-growth” polymerization, but they differ significantly in the raw materials used and the reaction conditions employed. Introduction Kinetics … [Read more...] about Cationic UV Polymerization Kinetics
Tunable Nanocrystals for Next-Generation Displays
By Liz Stevens, writer, UV+EB Technology The performance of modern optical devices – from extended reality headsets to organic light-emitting diode (OLED) displays and precision sensors – depends on the ability to precisely control how light behaves as it moves through layered materials. Refractive index, the measure of how much a material bends light, is a foundational … [Read more...] about Tunable Nanocrystals for Next-Generation Displays
Advances in Photopolymer Design
The UV additive manufacturing techniques discussed in this column have focused primarily on hardware approaches to additive manufacturing or the chemistry developed in combination with those approaches. 1 The current column is a brief survey of chemistries developed to function within the existing printer hardware landscape to explore novel areas of material performance. These … [Read more...] about Advances in Photopolymer Design
YP Highlight #19: Hayden Fowler
Dr. Hayden Fowler first joined Sandia National Laboratories as a postdoctoral researcher in early 2024, and then converted to a staff scientist in late 2025. Before joining Sandia, Fowler completed a Ph.D. in chemical engineering at the University of Colorado Boulder under the advisement of Professor Tim White as an NSF graduate research fellow, where the work focused on … [Read more...] about YP Highlight #19: Hayden Fowler