Hostname: page-component-586b7cd67f-t8hqh Total loading time: 0 Render date: 2024-11-29T07:42:54.516Z Has data issue: false hasContentIssue false
  • English
  • Français

Characterization of Renewable Composites

Published online by Cambridge University Press:  14 March 2011

A. Emekalam ,
X. Gu  and
D. Raghavan
A. Emekalam
Affiliation:
Polymer Division, Department of Chemistry, Howard University, Washington DC 20059
X. Gu
Affiliation:
Polymer Division, Department of Chemistry, Howard University, Washington DC 20059
D. Raghavan
Affiliation:
Polymer Division, Department of Chemistry, Howard University, Washington DC 20059
Get access

Abstract

In this study, we demonstrate the usefulness of chemical based method in combination with AFM to characterize a wide range of degradable polymer blends. This approach is based on selective degradation of one of the phase in a multi-phase system and the ability of TMAFM to provide nanoscale lateral information about the different phases in the polymer system. Composite films containing different percentage of hydrolyzable polymer were either melt processed/solution casted and then exposed to a hydrolytic acidic environment and analyzed using TMAFM. Pits were observed to form in the blend films. The progressive hydrolysis of the hydrolyzable component in the composite was studied by FTIR analyses. TMAFM phase imaging was used to follow pit growth of the blend as a function of exposure time. The usefulness of the chemical modification/AFM approach in the characterization of renewable porous material membranes is discussed.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 702: Symposium U – Advanced Fibers, Plastics, Laminates and Composites , 2001 , U7.1.1
Copyright
Copyright © Materials Research Society 2002

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

REFERENCES

1. Griffin, G. J. L., ACS Advances in Chemical Series, 134, 159 (1975).Google Scholar
2. Bonsignore, P. V., Coleman, R. D. and Mudde, J. P., Tappi Proceedings, Marco Islands, FL, 1992, pp.129–140.Google Scholar
3. Willett, J. L., Kotnis, M. A., O’Brein, G. S., Fanta, G. F., and Gordon, S. H., Journal of Applied Polymer Science, 72, 1121 (1998).Google Scholar
4. Otey, F. H., Westhoff, R. P., and Doane, W. M., Industrial Engineering Chemistry Research Development, 23, 284 (1984).Google Scholar
5. Raghavan, D., Wagner, G. C., and Wool, R. P., Journal of Environmentally Degradable Plastics, 1, 204 (1993).Google Scholar
6. Wool, R. P., Raghavan, D., Wagner, G. C., and Billieux, S., Journal of Applied Polymer Science, 77(8), 1643(2000).Google Scholar
7. McEvoy, R., Krause, S. and Wu, P., Polymer, 39, 5223(1998).Google Scholar
8. Hasegawa, H. and Hashimoto, T., Polymer, 33, 475(1992).Google Scholar
9. Vishwanathan, R., Tian, J., and Marr, D. W. M., Langmuir, 13, 1840 (1997).Google Scholar
10. Bar, G., Thomann, Y., Brandsch, R., and Whangho, M. H., Langmuir, 14, 1219 (1998).Google Scholar
11. Magonov, S. N., and Ellings, V., Surface Science, 375, L385 (1997).Google Scholar
12. Raghavan, D., Gu, X., Nguyen, T., VanLandingham, M., Karim, A., Macromolecules, 33(7), 2573(2000).Google Scholar
13. Raghavan, D., VanLandingham, M., Gu, X., and Nguyen, T., Langmuir, 16(24), 2454(2000).Google Scholar
14. Raghavan, D., Gu, X., VanLandingham, M., and Nguyen, T., Journal of Polymer Science: Polymer Physics Edition, 39, 1460(2001).Google Scholar
15. Raghavan, D., Gu, X., VanLandingham, M., and Nguyen, T., Macromolecular Symposia, 166, 297(2001).Google Scholar
16. Raghavan, D., Egwim, K., Ellis, R., Boerdel, S., Jones, W., 1997 DoD Coating Conference, Las Vegas, NV, 1997, pp1–10.Google Scholar
17. Raghavan, D. and Emekalam, A., Polymer Degradation and Stabilization, 72, 509(2001).Google Scholar
18.Unpublished Data.Google Scholar