Bottom Up Approaches to Improved Polyolefin Measurements
Sara V. Orski, Thomas W. Rosch, Anthony P. Kotula, Richard J. Sheridan, Frederick R. Phelan Jr., Kalman D. Migler, Chad R. Snyder, Luis Fernando Vargas Lara, Jack F. Douglas, Kathryn L. Beers
As a class of materials, polyolefins remain the largest production volume polymer in the world, as well as a highly desirable medium from which to engineer high performance and advanced properties for new applications. After decades of research, there are still major fundamental challenges to understanding the relationships between molecular structure, processing, morphology, and (ultimately) performance of these polymers. In two areas surface adsorption for separation methods and melt crystallization new tools and major advances in metrology are fueling a renewal of basic research into polyolefin characterization. Several approaches to these two problems, from theory and calculation to experimental models to elucidate each of these critical physical phenomena are undergoing current study at NIST.