Abstract
The cloud point curves of upper and lower consolute solutions(UCST, and LCST) have been determined for the solutions of the polydispersed polymethylmethacrylate(PMMA) and n-butyl chloride. Along with the increase of average molecular weights, the equilibrium curves of the lower consolute polymer solutions shifted toward lower temperature regions, but the upper consolute points appeared at higher temperatures. In addition, the shapes of phase boundaries near the consolute solution points became flattened at both temperature regions because of the influence of the polydispersity. In describing the phase diagram of molecular weights, both of the crit cal consolute temperatures were calculated, incorporating the relative chain length and the temperature dependence for the modified Flory-Huggins interaction parameterX 1 .
Similar content being viewed by others
References
Paul, D.R. and Newman, S.: Polymer Blends, Academic press, New York and London, (1978).
Francis, A.W. and Paulsboro, N.J.: Critical Solution Temperature, Advances in Chemistry Series, No. 31, Washington, D.C., (1961).
Flory, P.J.: Principle of Polymer Chemistry, Cornell University Press, Ithaca, N.Y., (1953).
Prigogine, I., Trappeniers, N. and Mathot, V.:J. Chem. Phys.,21, 559 (1953).
Flory, P.J., Orwoll, R.A. and Vrij, A.:J. Am. Chem. Soc,86, 3507 (1964).
Patterson, D., Bhattacharyya, S.N. and Picker, P.:Trans. Farad. Soc,64, 648 (1968).
Siow, K.S., Delmas, G. and Patterson, D.:Macromolecules,5, 29 (1972).
Koningsveld, R.:Br. Polym. J.,7, 435 (1975).
Saeki, S., Kuwahara, N. and Kaneko, M.:Macromolecules,9, 101 (1976).
Solc, K., Kleintjens, LA. and Koningsveld, R.:Macromolecules,17, 573 (1984).
Cowie, J.M.G., Maconnachie, A. and Ranson, R.J.:Macromolecules,4, 57 (1971).
Patterson, D.:Macromolecules,2, 672 (1969).
Kim, Y.C. and Kim,J.-D.:Korean J. Chem. Eng.,3, 99 (1986).
Anderson, G.R. and Wheeler, J.C.:J. Chem. Phys.,69, 3413 (1978).
Kwei, T.K., Pearce, E.M. and Min, B.Y.:Macromolecules,18, 2326 (1985).
Shultz, A.R. and Flory, P.J.:J. Am. Chem. Soc.,74, 4760 (1952).
Patterson, D. and Delmas, G.:Trans. Faraday Soc.,65, 708 (1969).
Patterson, D.:J. Polym. Sci.(C),16, 3379 (1968).
Prigogine, I.: The molecular theory of solutions, North-Holland, Amsterdam, and Interscience, New York, (1957).
Delmas, G. and Patterson, D.:J. Polym. Sci. Part C,30, 1 (1970).
Cowie, J.M.G. and McEwen, I.J.:J.C.S. Faraday I,72, 526 (1976).
Cowie, J.M.G. and McEwen, I.J.:Polymer,16, 244 (1975).
Koningsveld, R.:Adv. Colloid Interface Sci.,2, 151 (1968).
Delmas, G., Patterson, D. and Somcynsky, T.:J. Polym. Sci.,57, 79 (1962).
Brandrup, J. and Immergut, E.H.: Polymer Handbook, Wiley, New York, (1975).
Bovey, F.A. and Tiers, G.V.D.:J. Polym. Sci.,44, 173(1960).
Wolf, B.A. and Jend, R.:Macromolecules,12, 732 (1979).
Stanley, H.E. : Introduction to Phase Transitions and Critical Phenomena, Oxford Univ. Press, (1971).
Kleintjens, L.A. and Koningsveld, R.:Macromolecules,13, 303 (1980).
Katime, I. and Garay Pereg, M.:Br. Polym. J.,15, 117(1983).
Kuester, J.L. and Mize, J.H. : Optimization techniques with FORTRAN, McGraw-Hill, Inc., (1973).
Author information
Authors and Affiliations
Rights and permissions
About this article
Cite this article
Lee, HO., Ban, YB. & Kim, J.D. Upper and lower consolute solution temperatures of the pseudo-binary mixtures of polydispersed polymethylmethacrylate and n-butylchloride. Korean J. Chem. Eng. 5, 147–153 (1988). https://doi.org/10.1007/BF02697669
Received:
Accepted:
Issue Date:
DOI: https://doi.org/10.1007/BF02697669