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Second virial coefficients of polystyrene mixtures in 2-butanone

✍ Scribed by C.M. Kok; A. Rudin

Publisher
Elsevier Science
Year
1986
Tongue
English
Weight
163 KB
Volume
22
Category
Article
ISSN
0014-3057

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✦ Synopsis

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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✍ B. Schramm; E. Elias; R. Pilger πŸ“‚ Article πŸ“… 1982 πŸ› Elsevier Science 🌐 English βš– 198 KB

We present cupcrrmcntti data of second intcncrlon vuul coefficients of Ar-H2 at tcmpcralurcs of 77 3.87.1 and 90.1 K The results arc m evcllent agreement with calculations based on the Le Roy-Carlcy potcntel cncrgy surbcc.