Influence of sulfur content and curing time on the glass transition parameters in SBR vulcanizates: An ultrasonic study

Polymer Testing

Volumn 22, Issue 2, 2003, Pages 235-242

  Youssef, M H ^a  

^a CAIRO UNIVERSITY   (Egypt)

Author keywords

Curing conditions; Styrene butadiene rubber vulcanizates; Ultrasonic characterization

Indexed keywords

ACTIVATION ENERGY; ATTENUATION; CROSSLINKING; GLASS TRANSITION; RUBBER MOLDING; SULFUR; THERMAL EFFECTS; ULTRASONICS;

ULTRASONIC ATTENUATION;

SYNTHETIC RUBBER;

EID: 0037374892     PISSN: 01429418     EISSN: None     Source Type: Journal    
DOI: 10.1016/S0142-9418(02)00088-0     Document Type: Article

References (32)

1. Nielsen L.E., Landel R.F. Mechanical Properties of Polymers and Composites. 1994;Dekker, New York.
2. Hagen R., Salmén L., Stenberg B. Effects of the type of crosslink on the viscoelastic properties of natural rubber. J. Polym. Sci. Part B: Polym. Phys. 34:1996;1997.
3. Fan R., Zhang Y., Huang C., Zhang Y., Fan Y., Sun K. Effect of crosslink structures on dynamic mechanical properties of natural rubber vulcanizates under different aging conditions. J. Appl. Polym. Sci. 81:2001;710.
4. Mansour S.H., Tawfik S.Y., Youssef M.H. Unsaturated polyester resin as compatibilizer for SBR/NBR rubber blends. J. Appl. Polym. Sci. 83:2002;2314.
5. Yamada G., Koda S., Nomura H. Sound velocities in polymer blends and the compatibility. Jpn J. Appl. Phys. 38:1999;3091.
6. Youssef M.H. Temperature dependence of the degree of compatibility in SBR-NBR blends by ultrasonic attenuation measurements: influence of unsaturated polyester additive. Polymer. 42:2001;10055.
7. Youssef M.H., Mansour S.H., Tawfik S.Y. Effect of unsaturated polyester resin on the mechanical and ultrasonic properties of SBR and NBR. Polymer. 41:2000;7815.
8. Degtyar A.D., Huang W., Rokhlin S.I. Wave propagation in stressed composites. J. Acoust. Soc. Am. 104:1998;2192.
9. Guney H.Y., Oskay T., Ozkan H.S. Mechanical anisotropy in biaxially oriented polyvinyl chloride. J. Polym. Sci. Part B: Polym. Phys. 29:1991;897.
10. Maffezzoli A., Quarta E., Luprano V.A.M., Montagna G., Nicolais L. Cure monitoring of epoxy matrices for composites by ultrasonic wave propagation. J. Appl. Polym. Sci. 73:1999;1969.
11. Kondrat'ev A.I., Rimlyand V.I., Kazarbin A.V., Ivanov V.I. Investigation of polymerization of epoxy resins by acoustical methods. Acoust. Phys. 41:1995;405.
12. Maffezzoli A., Luprano A.M., Montagna G., Nicolais L. Ultrasonic characterization of water sorption in poly (2-hydroxyethyl methacrylate) hydrogels. J. Appl. Polym. Sci. 67:1998;823.
13. Koda S., Yamashita K., Iwai S., Nomuro H., Iwata M. Ultrasonic investigation of the states of water in hydrogels. Polymer. 35:1994;5626.
14. Flory P.J., Rehner J.J.R. Statistical mechanics of crosslinked polymer networks. II. Swelling. J. Chem. Phys. 11:1943;521.
15. George S.C., Ninan K.N., Thomas S. Effect of degree of crosslinking on swelling and mechanical behavior of conventionally vulcanized styrene-butadiene rubber membranes. Polym. Polym. Compos. 7:1999;343.
16. George S.C., Thomas S., Ninan K.N. Molecular transport of aromatic hydrocarbons through crosslinked styrene-butadiene rubber membranes. Polymer. 37:1996;5839.
17. Morell S.H. Blow C.M., Rubber Technology and Manufacture. 1975;Newness Butterworths, London.
18. McSkimin H.J. Mason W.P., Physical Acoustics, Part A, vol. 1. 1964;Academic Press, New York.
19. Guney H.Y., Oskay T., Ozkan H.S. Ultrasonic properties of PVC (S-27/R63) in the glassy region. J. Polym. Sci. Part B: Polym. Phys. 33:1995;985.
20. Youssef M.H., Gobran N.K. Modified treatment of ultrasonic pulse-echo immersion technique. Ultrasonics. 39:2002;473.
21. Graessley W.W. The entanglement concept in polymer rheology. Advances in Polymer Science 16. 1974;Springer, New York.
22. Kramer O. Contribution of entanglements to rubber elasticity. Polymer. 20:1979;1336.
23. Sardelis K., Michels H.J., Allen G. Graded block and randomized copolymers of butadiene-styrene. Polymer. 25:1984;1011.
24. Fuoss R., Kirkwood J.G. J. Am. Chem. Soc. 63:1941;385.
25. Youssef M.H., Bordoni P.G. Dislocation relaxation in cobalt and cadmium polycrystals. Philos. Mag. 68:1993;1315.
26. W. Hofmann, Vulcanization and Vulcanizing Agents, Maclaren, London, 1967.
27. Case L.C., Wargin R.V. Elastomer behavior. IV. The loop structure of elastomer networks. Macromol. Chem. 77:1964;172.
28. Alfrey T. Jr., Lloyd W.G. Network polymers. I. Theoretical remarks. J. Polym. Sci. 62:1962;159.
29. K. Shibayama, Kobunshi Kagaku 18 (1961) 183. [As mentioned by T. Kamon, H. Furukawa, Curing mechanisms and mechanical properties of cured epoxy resins, Advances in Polymer Science 80, Springer, New York, 1986].
30. Andrady A.L., Sefcik M.D. Glass transition in poly (propylene glycol) networks. J. Polym. Sci. Polym. Phys. 21:1983;2453.
31. Chang T.D., Carr S.H., Brittain J.O. Studies of epoxy resin systems. II. Effect of crosslinking on the physical properties of epoxy resin. Polym. Eng. Sci. 22:1982;1213.
32. Ogata M., Kinjo N., Kawata T. Effect of crosslinking on physical properties of Phenol-Formaldehyde Novolac cured epoxy resins. J. Appl. Polym. Sci. 48:1993;583.