Hostname: page-component-76fb5796d-45l2p Total loading time: 0 Render date: 2024-04-26T03:31:00.257Z Has data issue: false hasContentIssue false
  • English
  • Français

Effect of Annealing on High Frequency Viscoelastic Waves in Spincoated Polymer thin Films

Published online by Cambridge University Press:  21 February 2011

J. R. Dutcher ,
Z. Wang ,
B. J. Neal ,
T. Copeland  and
J. R. Stevens
J. R. Dutcher
Affiliation:
Department of Physics and Guelph-Waterloo Program for Graduate Work in Physics, University of Guelph, Guelph, Ontario, Canada, NIG 2W1
Z. Wang
Affiliation:
Department of Physics and Guelph-Waterloo Program for Graduate Work in Physics, University of Guelph, Guelph, Ontario, Canada, NIG 2W1
B. J. Neal
Affiliation:
Department of Physics and Guelph-Waterloo Program for Graduate Work in Physics, University of Guelph, Guelph, Ontario, Canada, NIG 2W1
T. Copeland
Affiliation:
Department of Physics and Guelph-Waterloo Program for Graduate Work in Physics, University of Guelph, Guelph, Ontario, Canada, NIG 2W1
J. R. Stevens
Affiliation:
Department of Physics and Guelph-Waterloo Program for Graduate Work in Physics, University of Guelph, Guelph, Ontario, Canada, NIG 2W1
Get access

Abstract

We present a study of the effect of elevated temperatures on the high frequency viscoelastic waves guided by thin films of poly(styrene) [PS] and poly(methyl methacrylate) [PMMA]. The films, which are spincoated onto Si(OOl) wafers, have thicknesses h ˜ 1000 Å. The frequencies and linewidths of the film-guided waves were measured using Brillouin light scattering (BLS). In both PS and PMMA, we observed guided waves for temperatures above the glass transition temperature Tg of the polymers, however, the damping of the waves for temperatures above Tg was significantly higher for PS. We observed no significant (< 1 %) difference between room temperature guided-wave frequencies for films annealed at temperatures below and above Tg for PS, and a slight (4 %) increase in the wave frequency for PMMA following annealing at a temperature above Tg. The heating effects due to the focussing of the laser beam on the film surface are quite small (˜ 16°C/100 mW laser power).

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 356: Symposium B2 – Thin Films: Stresses and Mechanical Properties V , 1994 , 535
Copyright
Copyright © Materials Research Society 1995

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

1. Ferry, J.D., Viscoelastic Properties of Polymers, 3rd ed. (John Wiley, New York, 1980).Google Scholar
2. see the various articles in J. Non-Cryst. Solids, 172–174 (1994).Google Scholar
3. Baschnagel, J., Phys. Rev. B 49, 135 (1994).Google Scholar
4. Sandercock, J.R., in Light Scattering in Solids III, edited by Cardona, M. and Güntherodt, G. (Springer, Berlin, 1982), p. 173.Google Scholar
5. Grimsditch, M., in Light Scattering in Solids V, edited by Cardona, M. and Güntherodt, G. (Springer, Berlin, 1989), p. 285.Google Scholar
6. Dutcher, J.R., Lee, S., Kim, J., Stegeman, G.I. and Falco, C.M., Phys. Rev. Lett. 65, 1231 (1990).Google Scholar
7. Lee, S., Dutcher, J.R., Stegeman, G.I., Duda, G., Wegner, G. and Knoll, W., Phys. Rev. Lett. 70, 2427 (1993).Google Scholar
8. Sun, L., Dutcher, J.R., Giovannini, L., Nizzoli, F., Stevens, J.R. and Ord, J.L., J. Appl. Phys. 75, 7482 (1994).Google Scholar
9. Farnell, G.W. and Adler, E.L., in Physical Acoustics, Principles and Methods, edited by Mason, W.P. and Thurston, R.N. (Academic, New York, 1972), Vol. 9, Chap. 2.Google Scholar
10. Grimsditch, M., Bhadra, R. and Torell, L.M., Phys. Rev. Lett. 62, 2616 (1989), and references therein.Google Scholar
11. Fioretto, D., Carlotti, G., Palmieri, L., Socino, G., Verdini, L. and Livi, A., Phys. Rev. B 47, 15286 (1993); D. Fioretto, L. Palmieri, G. Socino and L. Verdini, Phys. Rev. B 50, 605 (1994).Google Scholar
12. Polysciences Inc., 400 Valley Road, Warrington, PA 18976.Google Scholar
13. Redon, C., Brochard-Wyart, F. and Rondelez, F., Phys. Rev. Lett. 66, 715 (1991).Google Scholar
14. Reiter, G., Phys. Rev. Lett. 68, 75 (1992).Google Scholar
15. Karim, A., Singh, N., Sikka, M., Bates, F.S., Dozier, W.D. and Felcher, G.P., J. Chem. Phys. 100, 1620 (1994).Google Scholar
16. Keddie, J.L., Jones, R.A.L. and Cory, R.A., Europhys. Lett. 27, 59 (1994).Google Scholar
17. Reiter, G., Langmuir 9, 1344 (1993).Google Scholar
18. Headway Research Inc., 3713 Forest Lane, Garland, TX 75042.Google Scholar
19. Xu, J. and Manghnani, M.H., Phys. Rev. B 45, 640 (1992).Google Scholar