Portal de Periódicos da CAPES

Dynamic mechanical properties of poly(vinyl alkyl ethers)

1965; Wiley; Volume: 9; Issue: 10 Linguagem: Inglês

10.1002/app.1965.070091024

1097-4628

Joginder Lal, James E. McGrath, Kenneth W. Scott,

Polymer crystallization and properties

Journal of Applied Polymer ScienceVolume 9, Issue 10 p. 3471-3487 Article Dynamic mechanical properties of poly(vinyl alkyl ethers)† Joginder Lal, Joginder Lal The Goodyear Tire and Rubber Company, Research Division, Akron, OhioSearch for more papers by this authorJames E. McGrath, James E. McGrath The Goodyear Tire and Rubber Company, Research Division, Akron, OhioSearch for more papers by this authorKenneth W. Scott, Kenneth W. Scott The Goodyear Tire and Rubber Company, Research Division, Akron, OhioSearch for more papers by this author Joginder Lal, Joginder Lal The Goodyear Tire and Rubber Company, Research Division, Akron, OhioSearch for more papers by this authorJames E. McGrath, James E. McGrath The Goodyear Tire and Rubber Company, Research Division, Akron, OhioSearch for more papers by this authorKenneth W. Scott, Kenneth W. Scott The Goodyear Tire and Rubber Company, Research Division, Akron, OhioSearch for more papers by this author First published: October 1965 https://doi.org/10.1002/app.1965.070091024Citations: 10 † Presented at the 11th Canadian High Polymer Forum, Windsor, Ontario, Sept. 7, 1962. AboutPDF ToolsRequest permissionExport citationAdd to favoritesTrack citation ShareShare Give accessShare full text accessShare full-text accessPlease review our Terms and Conditions of Use and check box below to share full-text version of article.I have read and accept the Wiley Online Library Terms and Conditions of UseShareable LinkUse the link below to share a full-text version of this article with your friends and colleagues. Learn more.Copy URL Share a linkShare onEmailFacebookTwitterLinkedInRedditWechat Abstract The temperature dependence of the dynamic mechanical properties of dicumyl peroxide/sulfur vulcanizates of seven members of the poly(vinyl alkyl ether) series of elastomers has been determined. The relative position of the curves, relating the dynamic resilience to the dynamic modulus of these polymers, was generally in the order of their glass transformation temperatures (Tg). The dynamic mechanical property data on poly(vinyl n-pentyl ether) and poly(vinyl 2-ethylhexyl ether), which have the same Tg, fall on a common curve characteristic of the temperature of measurement. The dynamic resilience versus dynamic modulus curves are displaced towards higher dynamic resilience and usually lower dynamic modulus values as the temperature of measurement is increased. Poly(vinyl isobutyl ether) and poly(vinyl ethyl ether) show a larger temperature coefficient of resilience than do the other poly(vinyl alkyl ethers), which also include the n-butyl, n-hexyl, and n-octyl members. Apparently, the Tg is a major factor in correlating the dynamic mechanical behavior of this homologous series of elastomers. The size and shape of the alkyl group appear to be reflected primarily in their effect on the Tg. Poly(vinyl isobutyl ether) was the only member of the series showing any anomalies in dynamic mechanical properties that might be ascribed to structure. Because the dynamic resilience of various poly(vinyl alkyl ether) vulcanizates, possessing the same concentration of chemical crosslinks, correlate better with their degree of polymerization than with their molecular weight it appears that the dynamic resilience depends more on the length of the free chain ends than it does on their mass or volume. References 1 Ferry, J. D., Viscoelastic Properties of Polymers, Wiley, New York, 1961. 2 Schmieder, K., and K. Wolf, Kolloid-Z., 134, 149 (1953). 3 Mosley, S. A., U. S. Pat. 2,549,921 (1951). 4 Lal, J., and J. E. McGrath, J. Polymer Sci., A2, 3369 (1964). 5 Lal, J., and J. E. McGrath, Rubber Chem. Technol., 36, 1159 (1963). 6 Lal, J., and G. S. Trick, J. Polymer Sci., A2, 4559 (1964). 7 Gehman, S. D., D. E. Woodford, and R. B. Stambaugh, Ind. Eng. Chem., 33, 1032 (1941). 8 Thomas, D. K., J. Appl. Polymer Sci., 6, 613 (1962). 9 Payne, A. R., Rubber Chem. Technol., 37, 1190 (1964). 10 Gui, K. E., Figure 26 in S. D. Gehman, Rubber Chem. Technol., 30, 1202 (1957). 11 Bueche, F., Physical Properties of Polymers, Interscience, New York, 1962. 12 Kelley, F. N., and F. Bueche, J. Polymer Sci., 50, 549 (1961). 13 Bueche, F., J. Polymer Sci., 25, 243 (1957). 14 Gibbs, J. H., and E. A. DiMarzio, J. Chem. Phys., 28, 373 (1958). 15 Slichter, W. P., and D. D. Davis, J. Appl. Phys., 35, 10 (1964). 16 Costanza, A. J., Goodyear Research Laboratories, unpublished work. 17 Smith, T. L., and A. B. Magnusson, J. Appl. Polymer Sci., 5, 218 (1961). 18 Lal, J., and J. E. McGrath, Preprint, Intern. Symp. Macromol. Chem. Prague, 1965, P616. 19 Charlesby, A., and S. H. Pinner, Proc. Roy. Soc. (London), A249, 367 (1959). Citing Literature Volume9, Issue10October 1965Pages 3471-3487 ReferencesRelatedInformation