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is a postdoctoral research associate in the Manufacturing Science Division of Oak Ridge National Laboratory (ORNL). She received her B.A. (2015) from Illinois Wesleyan University and Ph.D. (2019) in organic chemistry from the University of South Carolina, where her research focused on macromolecular engineering of biomass polymers. Her current research interests include development of novel polymeric materials for a range of applications including composite materials, biopolymers, polymer upcycling, and stimuli-responsive materials. Nathalie Lavoine is an assistant professor of Renewable Materials Science in the Department of Forest Biomaterials at North Carolina State University (NCSU). Her research activities investigate the structure-processing-properties relationships of renewable nanotechnology for sustainable design and processing of advanced sustainable materials from the biomass, as crucial alternatives to fossil-fuel-based plastics. She received her Ph.D. in 2013 at the Laboratory of Pulp and Paper Sciences and Graphic Arts (LGP2), in France. She did two postdoctoral experiences, one at the University of Tokyo (Japan), as part of the research group of Prof. Isogai (2014-2016); the other at Stockholm University (Sweden) in the research group of Prof. Bergstrom (2016-2018).

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Gas-liquid chromatography is used to measure polymer-solvent interactions in polymer solutions where the solvent is at infinite dilution. Experimental data are presented for 24 binary polymer-solvent systems in the temperature range 50° to 150OC. A simple relation exists between the experimental retention volume data and the infinite dilution volatility; this volatility can be used to calculate the solvent vapor pressure over the polymer solution up to about 0.1 weight fraction solvent. Using concepts from the Prigogine-Flory theory of polymer solutions, Flory-Huggins x parameters for some polymer-hydrocarbon systems were correlated with the hydrocarbon's normal boiling temperature.