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Mankidy, Bijith D.; Coutinho, Cecil A.; Gupta, Vinay K. – Journal of Chemical Education, 2010
The diffusion coefficient of polymers is a critical parameter in biomedicine, catalysis, chemical separations, nanotechnology, and other industrial applications. Here, measurement of macromolecular diffusion in solutions is described using a visually instructive, undergraduate-level optical refraction experiment based on Weiner's method. To…
Descriptors: Chemistry, Biological Sciences, Chemical Engineering, Science Instruction