Multiple mechanical relaxations in ethylcyclohexane above the glass transition temperature

Journal of Physical Chemistry B

Volumn 111, Issue 37, 2007, Pages 10999-11003

  Mandanici, Andrea ^a   Cutroni, Maria ^a  

^a UNIVERSITY OF MESSINA   (Italy)

Author keywords

[No Author keywords available]

Indexed keywords

ANELASTIC RELAXATION; GLASS TRANSITION; ULTRASONIC EFFECTS;

COMPLEX DYNAMIC BEHAVIORS; ETHYLCYCLOHEXANES; INTRAMOLECULAR ORIGINS; SECONDARY RELAXATIONS; ULTRASONIC FREQUENCIES;

OLEFINS;

EID: 34948891619     PISSN: 15206106     EISSN: None     Source Type: Journal    
DOI: 10.1021/jp071202l     Document Type: Article

References (37)

1. McKenna, G. B. Glass Formation and Glassy Behavior. In Comprehensive Polymer Science; Booth, C., Price. C., Eds.; Pergamon Press: Oxford, 1989; Vol. 2, pp 311-362.
2. Ediger, M. D.; Angell, C. A.; Nagel, S. R. J. Phys. Chem. 1996, 100, 13200.
3. Angell, C. A.; Ngai, K. L.; McKenna. G. B.; McMillan: P. F.; Martin, S. W. J. Appl. Phys. 2000, 88. 3113.
4. Ngai, K. L. In Non-Debye Relaxations in Condensed Matter; Ramakrishnam, T. V., Laksmi, Eds.; World Scientific: Singapore. 1986.
5. McCrum. N. G.; Read, B. E.: Williams G. Anelastic and Dielectric Effects in Polymeric Solids; Wiley: London, 1967.
6. Meier, G.: Gerharz. B.: Boese. D.: Fischer, E. W. J. Chem. Phys. 1991, 94, 3050.
7. Hansen, C.; Stickel, F.: Berger, T.; Richert, R.; Fischer, E. W. J. Chem. Phys. 1997, 107, 1086.
8. Johari, G. P. J. Chem. Phys. 1973, 58, 1766.
9. Johari. G. P.: Goldstein, M. J. Chem. Phys. 1970, 53, 2372.
10. Ngai, K. L.; Paluch, M. J. Chem. Phys. 2004, 120, 857.
11. Ngai, K. L.; Lunkenheimer, P.; Leon. C.; Schneider. U.; Brand, R.; Loidl, A. J. Chem. Phys. 2001, 115. 1405.
12. Johari. G. P.; Goldstein, M. J. Chem. Phys. 1971, 55, 4245.
13. Olsen, N. B.; Christensen, T.; Dvre. J. C. Phys. Rev. E 2000, 62, 4435.
14. Ngai, K. L. Phys. Rev. B 2005. 71, 214201.
15. Wang, L.-M.; Richert, R. J. Phys. Chem. B 2005, 109, 11091.
16. Wang, L.-M.; Richert, R. J. Chem. Phys. 2004, 121, 11170.
17. Huth, H.; Wang. L. M.; Schick. C.: Richert, R. J. Chem. Phys. 2007, 126, 104503.
18. Piercy, J. E.; Subrahmanyam, S. V. J. Chem. Phys. 1965, 42, 4011.
19. Karpovich, J. J. Chem. Phys. 1954, 22, 1767.
20. Lamb, J. In Physical Acoustics. Principles and Methods; Mason, W. P. Ed.: Academic Press: New York and London, 1965: Vol. II, Part A. p 203.
21. Kaatze, U.; Hushcha, T. O.: Eggers. F. J. Solution Chem. 2000, 29. 299.
22. Lamb, J.; Sherwood, J. Trans. Faraday Soc. 1955, 51, 1674.
23. According to ref 22, the mechanical relaxation observed in ethylcyclohexane has a characteristic frequency of 60 kHz at 16° C.
24. Cutroni, M.; Mandanici. A. J. Chem. Phys. 2001, 114, 7124.
25. Cutroni, M.; Mandanici, A. Mater. Sci. Eng. A: Struct. 2004, 370, 464.
26. Mandanici, A.; Cutroni, M.; Triolo, A.; Rodriguez-Mora, V.; Ramos, M. A. J. Chem. Phys. 2006, 125, 54514.
27. Although the fit underestimates the experimental data in the lowtemperature tail of the main peak at 10 MHz.
28. Litovitz, T. A.; Davis, C. M. In Physical Acoustics. Principles and Methods; Mason, W. P., Ed.; Academic Press: New York and London, 1965; Vol. II, Part A, pp 281-349.
29. Heijboer, J. Kolloid. Z. 1956, 148, 36. Heijboer, J. Nat. Sci. Dr. Thesis, University of Leiden, 1972. TNO Centraal Laboratorium Commun. No. 435, Delft, The Netherlands.
30. Ribes-Greus, A.; Gomez-Ribelles, J. L.; Diaz-Calleja, R. Polymer 1985,26,1849.
31. Floudas, G.: Fytas, G.; Fischer, E. W. Macromolecules 1991, 24, 1955.
32. The relaxation time has been calculated as the inverse of the peak frequency (via the relation 2πfτ = 1), as estimated directly from the mechanical loss and dielectric loss experimental data.
33. Durov, V. A.; Artykov, A. Russ. J. Phys. Chem. 1985, 59, 1516.
34. Dorfmueller, Th.; Fytas, G.; Mersch, W.; Samios, D. J. Chem. Soc., Faraday Discuss. 2 1977, 11, 106.
35. Carpenter, M. R.; Davies, D. B.; Matheson, A. J. J. Chem. Phys. 1967, 46, 2451.
36. Van Velzen, D.; Lopes Caroozo, R.; Langenkamp, H. Liquid viscosity and chemical consitution of organic compounds: a new correlation and a compilation of literature data; Commission of the European Communities, Joint Nuclear Research Centre: Ispra, Italy, 1972.
37. In the case of dielectric relaxations, the relation between the relaxation time and the shear viscosity has been discussed in: Stickel, F.; Fischer, E. W.; Richert, R. J. Chem. Phys. 1996, 104, 2043.