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Viscoelastic Responses of Inorganic-Oranic Hybrids Polymers

Published online by Cambridge University Press:  10 February 2011

Andre Lee
Andre Lee*
Affiliation:
Materials Science and Mechancis Department, Michigan State University, E. Lansing, MI. 48824, [email protected]
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Abstract

The properties of nano-structured plastics are determined by complex relationships between the type and size of the nano-reinforcement, the interface and chemical interaction between the nano-reinforcement and the polymeric chain, along with macroscopic processing and microstructural effects. In this paper we investigated the thermal and viscoelastic property enhancement on crosslinked epoxy using two types of nano-reinforcement, namely organoion exchange clay and polymerizable polyhedral oligomeric silsesquioxane (POSS) macromers. Glass transitions of these nano-composites were studied using differential scanning calorimetry. Small strain stress relaxation under uniaxial deformation was examined to provide insights into the timedependent viscoelastic behavior of these nano-composites. Since the size of POSS macromer is comparable to the distance between molecular junctions, hence as we increase the amount of POSS macromers, the glass transition temperature, Tg, as observed by DSC increase. However for epoxy network reinforced with clay, we did not observe any effect on the Tg due to the presence of clay reinforcements. In small strain stress relaxation experiments, both types of reinforcement provided some enhancement in creep resistance, namely the characteristic relaxation time as determined using a stretched exponential relaxation function increased with the addition of reinforcements. However, due to different reinforcement mechanisms, enhancement in the instantaneous modulus was observed for clay-reinforced epoxies, while the instantaneous modulus was not effected in POSS-epoxy nano-composites.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 576: Symposium DD – Organic/Inorganic Hybrid Materials II , 1999 , 343
Copyright
Copyright © Materials Research Society 1999

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References

REFERENCES

1. (A) Hybrid Organ ic-Inorgan ic Composites; Mark, J. E., Lee, C. Y-C., Bianconi, P. A., Eds.; ACS Symposium Series 585; American Chemical Society: Washington, DC, 1995. (B) Miller B., Plastics Formulating and Compounding, 1997, 3, 30–32.Google Scholar
2. Mark, J. E., Ning, Y. P., Tang, M. Y., and Roth, W. C., Polymer, 26, 2069 (1985).10.1016/0032-3861(85)90189-2Google Scholar
3. Ning, Y. P., Tang, M. Y., Jiang, C. Y. Mark, J. E., and Roth, W. C., J. Appl. Polym. Sci., 29, 3209, (1984).10.1002/app.1984.070291022Google Scholar
4. Novak, B., Advanced Materials., 5, 422, (1993).10.1002/adma.19930050603Google Scholar
5. Schwab, J. J., Haddad, T. S., Lichtenhan, J. D., Mather, P. T., Chaffee, K. P.; in Proceedings of the Society of Plastics Engineers, 54th ANTEC, 1997, 611, 1817–1820.Google Scholar
6. Haddad, T. S., and Lichtenhan, J. D., Macromolecules, 29, 7302 (1996).10.1021/ma960609dGoogle Scholar
7. Haddad, T. S., and Lichtenhan, J. D., J. of Inorg. and Organomet. Polym., 5, 237 (1995).10.1007/BF01057895Google Scholar
8. Lee, A., and Lichtenhan, J. D., Macromolecules, 31, 4970, (1998).10.1021/ma9800764Google Scholar
9. Lichtenhan, J. D., Vu, N. Q., Carter, J. A., Gilman, J. W., and Feher, F. J., Macromolecules, 26, 2141 (1993).10.1021/ma00060a053Google Scholar
10. Lichtenhan, J. D., Communications Inorg. Chem., 17, 115 (1995).10.1080/02603599508035785Google Scholar
11. Lichtenhan, J. D., Otonari, Y. A., and Carr, M. J.; Macromolecules, 1995, 28, 8435–8437.10.1021/ma00128a067Google Scholar
12. Mantz, R. A., Jones, P. R., Chaffee, K. P., Lichtenhan, J. D., Gilman, J. W.,Ismail, I. M. K., and Burmeister, M. J.,; Chem. Mater., 1996, 8, 1250–1259.10.1021/cm950536xGoogle Scholar
13. Romo-Uribe, A., Mather, P. T., Haddad, T. S., and Lichtenhan, J. D., J. Polym. Sci., Polym. Phys. Ed., 36, 1857 (1998)10.1002/(SICI)1099-0488(199808)36:11<1857::AID-POLB7>3.0.CO;2-N3.0.CO;2-N>Google Scholar
14. Kawasumi, M., Hasegawa, N., Kato, M., Usuki, A., and Okada, A., Macromolecules, 30, 6333 (1997).10.1021/ma961786hGoogle Scholar
15. Kojima, Y., Usuki, A., Kawasumi, M., Okada, A., Fukushima, Y., Kurauchi, T., and Kimingto, O., J. Materials Research, 8, 1185 (1993).10.1557/JMR.1993.1185Google Scholar
16. Usuki, A., Kawasumi, M., Kojima, Y. Okada, A., Kurauchi, T., and Kimingto, O., J. Materials Research, 8, 1174 (1993).10.1557/JMR.1993.1174Google Scholar
17. Usuki, A., Kojima, Y., Kawasumi, M., Okada, A., Fukushima, Y., Kurauchi, T., and Kamigito, O., J. Materials Research, 8, 1179 (1993).10.1557/JMR.1993.1179Google Scholar
18. Yano, K., Usuki, A., Okada, A., Kurauchi, T., and Kamigito, O. J., J. Polym. Sci., Polym. Chem. Ed., 31, 2493 (1993).10.1002/pola.1993.080311009Google Scholar
19. Vaia, R. A., Isii, H., and Giannelis, E. P., Chem. Mater. 5, 1694 (1993).10.1021/cm00036a004Google Scholar
20. Richards, A. V., Jandt, K. D., Ewards, J. K., and Giannelis, E. P., Macromolecules, 28, 8080 (1995).Google Scholar
21. Lan, T., Kariratna, P. D., and Pinnavaia, T. J., Chem. Materials, 6, 573, (1994).10.1021/cm00041a002Google Scholar
22. Pinnavaia, T. J., Lan, T., Wang, Z. Shi, H., and Kariratna, P. D.; “Nano-Technology”, Ch. 17, ACS Symp. Ser. (1996).Google Scholar
23. Pinnavaia, T. J., Science, 365 (1983).10.1126/science.220.4595.365Google Scholar
24. Dusek, K.; Prins, W.; Advanced Polymer Science, 1969, 6, 1.Google Scholar
25. Kohlrausch, F.; Pogg. Ann. Physics, 1847, 12, 393.Google Scholar
26. Williams, G.; Watts, D. C.; Trans. Faraday Soc., 1970, 66, 80.10.1039/tf9706600080Google Scholar
27. Struik, L. C. E.; Physical Aging in Amorphous Polymers and Other Materials, Elsevier, Amsterdam, 1979.Google Scholar
28. Kovacs, A. J.; Fortschr. Hochpolym.-Forsch, 1964, 3, 394.10.1007/BFb0050366Google Scholar
29. McKenna, G. B.; in Comprehensive Polymer Science Vol. 2, Polymer Properties, Booth, C.; Price, C., Editors, Pergamon, Oxford, 1989.Google Scholar
30. Lee, A.; McKenna, G. B.; Polymers, 1988, 29, 1812.10.1016/0032-3861(88)90396-5Google Scholar
31. Lee, A.; McKenna, G. B.; Polymers, 1990, 31, 423.10.1016/0032-3861(90)90379-DGoogle Scholar