Abstract
Shiomi et al. showed from their experimental results that characteristic parameters depend nonlinearly on concentration, and that the size difference between segment and solvent should be reflected by the Flory theory. Their effects are examined in the present report in terms of the solution properties of the PDMS–n-alkane system. The concentration dependence of v* was as expected from Shiomi et al.’s theory, but deviations from additivity appeared in P*, T*, v and P*vsp*/T* (or external degree of freedom). The concentration dependence of χ was overestimated by this modified Flory theory as also by the original Flory theory.
Similar content being viewed by others
Article PDF
References
P. J. Flory, J. Am. Chem. Soc., 87, 1833 (1965).
P. J. Flory, Discuss, Faraday Soc., 49, 7 (1970).
D. Patterson, S. N. Bhattacharyya and P. Picker, Trans. Faraday Soc., 64, 648 (1968).
D. Patterson and B. Delmas, Trans. Faraday Soc., 65, 708 (1969).
D. Patterson, Rubber Chem. Technol., 40, 1 (1967).
K. Kubota, K. Kubo, K. Y. Bai and K. Ogino, Rep. Prog. Polym. Phys. Jpn., 20, 43 (1977).
F. Hamada, T. Shiomi, K. Fujisawa and A. Nakajima, Macromolecules, 13, 729 (1980).
T. Shiomi, K. Fujisawa, F. Hamada, and A. Nakajima, J. Chem. Soc., Faraday Trans. 2, 76, 895 (1980).
T. Shiomi, F. Hamada, and A. Nakajima, Polym. Prepr., Jpn., 27, 1528 (1978).
J. A. R. Kenuncio and J. M. Prausnitz, Macromolecules, 9, 324 (1976).
K. Kubota and K. Ogino, Bull. Chem. Soc. Jpn., 52, 231 (1979).
P. J. Flory and H. Shih, Macromolecules, 5, 761 (1972).
R. S. Chahel, W. P. Kao, and D. Patterson, J. Chem. Soc., Faraday Trans. 1, 69, 1834 (1973).
K. Sugiyama, N. Kuwahara, and M. Kaneko, Macromolecules, 7, 66 (1974).
P. Tancrede, D. Patterson, and V. T. Lam, J. Chem. Soc., Faraday Trans. 2, 71, 985 (1975).
Author information
Authors and Affiliations
Rights and permissions
About this article
Cite this article
Kubota, K., Ogino, K. Thermodynamic Properties of Poly(dimethylsiloxane)–p-Alkane Solutions. Polym J 13, 853–858 (1981). https://doi.org/10.1295/polymj.13.853
Issue Date:
DOI: https://doi.org/10.1295/polymj.13.853