Abstract
Local segmental motions of poly(cis-1,4-isoprene) (cis-PI) labeled with anthracene were examined by the method of fluorescence depolarization using 1,4-dioxane, n-dodecane, cyclohexane, benzene, ethylbenzene, and o-xylene as the solvents with a viscosity of less than 2 cP. The anisotropy ratio was measured in these dilute solutions, and the mean relaxation time, Tm, for the chain local motion was obtained. The activation energy, E*, was obtained by using the theory of Kramers’ diffusion limit. The reduced relaxation time, Tm/η, for cis-PI was much shorter than that for polystyrene and was independent of the local segment density differing from that of polystyrene. The dependence of activation energy, E*, on the solvent was very weak, compared to that of polystyrene. These findings could be interpreted in terms of the dynamic flexibility of the polymer chain.
Similar content being viewed by others
Article PDF
References
W. H. Stockmayer, Pure Appl. Chem., 15, 539 (1967).
W. H. Stockmayer and J. J. Burke, Macromolecules, 2, 647 (1969).
M. Doi and S. F. Edwards, “The Theory of Polymer Dynamics,” Oxford Science Publishers, Oxford, 1986.
E. Helfand, J. Chem. Phys., 54, 4651 (1971).
E. Helfand, Z. R. Wasserman, and T. A. Weber, Macromolecules, 13, 526 (1980).
T. Yoshizaki, M. Fujii, and H. Yamakawa, J. Chem. Phys., 82, 1003 (1985).
S. Glowinkowski, D. J. Gisser, and M. D. Ediger, Macromolecules, 23, 3520 (1990).
F. Heatley, Progress in NMR Spectroscopy, 13, 47 (1979).
F. Lauprêtre, C. Noël, and L. Monnerie, J. Polym. Sci., Polym. Phys. Ed., 15, 2127 (1977).
B. Chu, “Laser Light Scattering,” 2nd ed., Academic, New York, 1991.
R. Pecora, Ed., “Dynamic Light Scattering,” Plenum, New York, 1985.
A. T. Bullock, G. G. Cameron, and V. Krajewski, J. Phys. Chem., 80, 1792 (1976).
S. Mashimo, Macromolecules, 9, 91 (1976).
K. Adachi, Macromolecules, 23, 1816 (1990).
B. Valeur and L. Monnerie, J. Polym. Sci., Polym. Phys. Ed., 14, 11 (1976).
M. D. Ediger, Annu. Rev. Phys. Chem., 42, 225 (1991).
T. Sasaki and M. Yamamoto, Macromolecules, 22, 4009 (1989).
S. Yokotsuka, Y. Okada, Y. Tojo, T. Sasaki, and M. Yamamoto, Polym. J., 23, 95 (1991).
K. Adachi, Y. Imanishi, and T. Kotaka, J. Chem. Soc., Faraday Trans. 1, 85, 1065 (1989).
K. Adachi, Y. Imanishi, and T. Kotaka, J. Chem. Soc., Faraday Trans. 1, 85, 1075 (1989).
K. Adachi, Y. Imanishi, and T. Kotaka, J. Chem. Soc., Faraday Trans. 1, 85, 1083 (1989).
K. Adachi and T. Kotaka, Macromolecules, 18, 466 (1985).
K. Adachi, I. Nishi, H. Doi, and T. Kotaka, Macromolecules, 24, 5843 (1991).
D. Boese, F. Kremer, and L. J. Fetters, Macromolecules, 23, 829 (1990).
V. Veissier, J.-L. Viovy, and L. Monnerie, Polymer, 30, 1262 (1989).
D. A. Waldow, B. S. Johnson, P. D. Hyde, M. D. Ediger, T. Kitano, and K. Ito, Macromolecules, 22, 1345 (1989).
D. B. Adolf, M. D. Ediger, T. Kitano, and K. Ito, Macromolecules, 25, 867 (1992).
“Kagaku Binran Kiso Hen,” 3rd ed., The Chemical Society of Japan, Ed., Maruzen, Tokyo, 1984, Chap. 6.
N. Hadjichristidis and J. E. L. Roovers, J. Polym. Sci., Polym. Phys. Ed., 12, 2521 (1974).
Ya. I. Poddubnyi and E. G. Ehrenburg, J Polym. Sci., 57, 545 (1962).
K. Ono, Y. Okada, S. Yokotsuka, S. Ito, and M. Yamamoto, Polym. J., 26, 199 (1994).
T. Sasaki, M. Yamamoto, and Y. Nishijima, Macromolecules, 21, 610 (1988).
C. K. Hall and E. Helfand, J. Chem. Phys., 77, 3275 (1982).
H. A. Kramers, Physica, 7, 284 (1940).
K. Ono, Y. Okada, S. Yokotsuka, T. Sasaki, and M. Yamamoto, Macromolecules, to be submitted.
P. J. Flory, “Principles of Polymer Chemistry,” Cornell University Press, Ithaca, New York, 1953.
Author information
Authors and Affiliations
Rights and permissions
About this article
Cite this article
Ono, K., Ueda, K. & Yamamoto, M. Local Chain Dynamics of Poly(cis-1,4-isoprene) in Dilute Solutions Studied by the Fluorescence Depolarization Method. Polym J 26, 1345–1351 (1994). https://doi.org/10.1295/polymj.26.1345
Issue Date:
DOI: https://doi.org/10.1295/polymj.26.1345