Effect of solvent nature on intrinsic viscosity of an ethylene-propylene-dicyclopentadiene copolymer
Tóm tắt
The hydrodynamic behavior of solutions of the ethyleneópropylene-dicyclopentadiene copolymer in hydrocarbon solvents has been studied. It has been shown that the effects of temperature on the thermodynamic affinities of aromatic and aliphatic solvents for copolymer macromolecules are substantially different. The thermodynamic quality of aromatic solvents relative to the copolymer and the hydrodynamic volume of macromolecular coils increase with temperature; the aliphatic solvents show quite a reverse behavior.
Tài liệu tham khảo
V. M. Busygin, G. S. D’yakonov, K. S. Minsker, and Al. Al. Berlin, Summa Tekhnol., No. 4, 48 (2000).
J. Ceni, P. P. De, A. K. Bhowmick, and S. K. De, J. Appl. Polym. Sci. 82, 3304 (2001).
O. Chiantore, M. Guaita, and S. Caldari, in Proceedings of 11 Conference on Italian Science and Technology of Macromolecules, Turin, 1993, p. 1681.
A. Sen, Macromolecules 23, 2519 (1990).
S. V. Kon’kova and L. V. Adamova, in Proceedings of 10 All-Russia Student Scientific Conference Dedicated to 80 Anniversary of Ural State Univ. “Problems of Theoretical and Experimental Chemistry,” Yekaterinburg, 2000, p. 256.
P. Cinquina, G. Gianotti, and D. Borghi, Polym. Commun. 31, 30 (1990).
G. Ciampa, Chim. Ind. (Milan) 41, 984 (1959).
V. N. Tsvetkov, V. E. Eskin, and S. Ya. Frenkel’, The Structure of Macromolecules in Solutions (Nauka, Moscow, 1964) [in Russian].
T. Noboru and S. Randolph, Rubber Chem. Technol. 42, 944 (1969).
I. I. Tverdokhlebova, Conformation of Macromolecules (Khimiya, Moscow, 1988) [in Russian].
S. R. Rafikov, V. P. Budtov, and Yu. B. Monakov, An Introduction to Physical Chemistry of Polymer Solutions (Nauka, Moscow, 1978) [in Russian].
P. G. De Gennes, Scaling Concepts in Polymer Physics (Cornell Univ. Press, Ithaca, 1979; Mir, Moscow, 1982).
V. N. Karasev, Candidate’s Dissertation in Technical Sciences (Ufa, 1974).