Abstract
Measurements of ultrasonic absorption were carried out for polycarbonate in dioxane and in chloroform at frequencies from 1 to 130 MHz over a temperature range of 10 to 55°C. The molecular weight of the sample was about 4.0×104. In both systems double relaxation processes were observed. For the first relaxation process (at a lower frequency) the relaxation frequencies of polycarbonate in solutions do not differ very much from those of vinyl-type polymers in spite of structural differences in the backbone chains. The first relaxation process is attributed to the local segmental motions concerned with several monomer units or more. The second relaxation process (at a higher frequency) in solutions of polycarbonate and of vinyl-type polymers are strongly affected by solvents.
Similar content being viewed by others
Article PDF
References
H. Nomura, S. Kato, and Y. Miyahara, Nippon Kagaku Zasshi, 91, 837 (1970).
H. Nomura, S. Kato, and Y. Miyahara, J. Mater. Soc. Jpn., 20, 669 (1971).
H. Nomura, S. Kato, and Y. Miyahara, Nippon Kagaku Kaishi, 1973, 1554.
H. Nomura, S. Kato, and Y. Miyahara, Nippon Kagaku Kaishi, 1973, 2398.
H. Nomura and Y. Miyahara, Nippon Kagaku Zasshi, 88, 502 (1967).
K. Okano, Rep. Prog. Polym. Phys. Jpn., 5, 67 (1962).
G. Harrison, J. Lamb, and A. J. Matheson, J. Phys. Chem., 68, 1972 (1964).
Y. Y. Gotlib and A. A. Darinskii, Soviet. Phys. Acoust., 19, 430 (1974).
D. J. Massa, J. L. Schrag, and J. D. Ferry, Macromolcules, 4, 210 (1971).
C. Tondre and R. Cerf, J. Chim. Phys., 65, 1105 (1968).
T. Ohsawa and Y. Wada, Polym. J., 1, 465 (1970).
K. Ono, H. Shintani, O. Yano, and Y. Wada, Polym. J., 5, 164 (1973).
H. Hässler and H. J. Bauer, Kolloid Z. Z. Polym., 230, 194 (1969).
O. Fünfshilling, P. Lemaréchal, and R. Cerf, Chem. Phys. Lett., 365 (1971).
S. Kato, I. Uehara, H. Kondo, H. Nomura, and Y. Miyahara, Nippon Kagaku Kaishi, 1975, 1651.
S. Kato, H. Kondo, I. Fujio, H. Nomura, and Y. Miyahara, Nippon Kagaku Kaishi, 1974, 1981.
S. Teramachi, A. Takahashi and I. Kagawa, Nippon Kogyo Kagaku Zasshi, 69, 685 (1966).
L. W. Reeves and W. G. Schneider, Can. J. Chem., 35, 251 (1957).
L. A. Davidovichi, A. A. Ivanov, S. Makhkamov, L. Pulatova, P. K. Khabibullaev, M. G. Khaliulin, and Sh. Sharipov, Soviet. Phys. Acoust., 19, 18 (1973).
J. L. Hunter, D. Dossa, J. Haus, and D. Sette, J.C.P., 60, 4605 (1974).
W. Ludlow, E. Wyn-Jones, and J. Rassing, Chem. Phys. Lett., 13, 477 (1972).
P. Lemaréchal, Chem. Phys. Lett., 16, 495 (1972).
Author information
Authors and Affiliations
Rights and permissions
About this article
Cite this article
Kato, S., Nomura, H. & Miyahara, Y. Ultrasonic Absorption of Polycarbonate in Dioxane and in Chloroform. Polym J 9, 371–376 (1977). https://doi.org/10.1295/polymj.9.371
Issue Date:
DOI: https://doi.org/10.1295/polymj.9.371