Rachel Elizabeth Whittier Whittier, R. E., Xu, D. W., Zanten, J. H., Kiserow, D. J., & Roberts, G. W. (2006). Viscosity of polystyrene solutions expanded with carbon dioxide. JOURNAL OF APPLIED POLYMER SCIENCE, 99(2), 540–549. https://doi.org/10.1002/app.22483