Second virial coefficients of polystyrene mixtures in 2-butanone |
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| Affiliation: | 1. Department of Biological and Physical Sciences, South Carolina State University, Orangeburg, South Carolina 29115, United States;2. Department of Chemistry and Biochemistry, University of South Carolina, Columbia, South Carolina 29208, United States |
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| Abstract: | Variation of the second virial coefficient as a function of polymer composition for three pairs of polystyrene mixtures in 2-butanone has been studied using static light scattering. The results are better represented by the simple method of taking the geometric mean of the second virial coefficients of the separate polymer species rather than by the two-parameter theory. In one of the three combinations studied, the presence of a minimum in the second virial coefficient-composition plot supports similar observations by previous workers. |
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