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Stretched Exponential Stress Relaxation in a Thermally Reversible, Physically Associating Block Copolymer Solution

Published online by Cambridge University Press:  21 February 2012

Kendra A. Erk  and
Jack F. Douglas
Kendra A. Erk
Affiliation:
Department of Materials Science & Engineering, Northwestern University, Evanston, IL 60202 Polymers Division, National Institute of Standards and Technology, Gaithersburg, MD 20899
Jack F. Douglas
Affiliation:
Polymers Division, National Institute of Standards and Technology, Gaithersburg, MD 20899
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Abstract

The shear stress relaxation of a thermally reversible, physically associating solution formed from a triblock copolymer in solvent selective for the mid-block was found to be well described over a broad temperature range by a stretched exponential function with a temperature independent ‘stretching exponent’, β ≈ 1/3. This same exponent value has been suggested to have particular significance in describing structural relaxation in a wide range of disordered viscoelastic materials ranging from associating polymer materials (‘gels’) to glass-forming liquids. We quantify the temperature dependence of the high frequency, or short time, shear modulus as function of temperature and find that this property also follows a variation often observed in gels and glass-forming materials.

Keywords

polymerself-assemblystress/strain relationship
Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 1418: Symposium LL/MM – Gels and Biomedical Materials , 2012 , mrsf11-1418-ll01-02
Copyright
Copyright © Materials Research Society 2012

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References

REFERENCES

[1] Palmer, R. G., Stein, D. L., Abrahams, E., and Anderson, P. W., Phys. Rev. Lett. 53, 958–961 (1984).CrossRefGoogle Scholar
[2] Séréro, Y., Jacobsen, V., Berret, J. F., and May, R., Macromolecules 33, 1841–1847 (2000).CrossRefGoogle Scholar
[3] Hotta, A., Clarke, S. M., and Terentjev, E. M., Macromolecules 35, 271–277 (2002).CrossRefGoogle Scholar
[4] Erk, K. A. and Shull, K. R., Macromolecules 44, 932–939 (2011).CrossRefGoogle Scholar
[5] Seitz, M. E., Burghardt, W. R., Faber, K. T., and Shull, K. R., Macromolecules 40, 1218–1226 (2007).CrossRefGoogle Scholar
[6] Bras, R. E. and Shull, K. R., Macromolecules 42, 8513–8520 (2009).CrossRefGoogle Scholar
[7] Erk, K. A., Martin, J. D., Hu, Y. T., and Shull, K. R., Accepted by Langmuir (2012).Google Scholar
[8] Baumberger, T., Caroli, C., and Martina, D., Nature Materials 5, 552–555 (2006).CrossRefGoogle Scholar
[9] Erk, K. A., Henderson, K. J., and Shull, K. R., Biomacromolecules 11, 1358–1363 (2010).CrossRefGoogle Scholar
[10] Koga, T., Tanaka, F., Kaneda, I., and Winnik, F. M., Langmuir 25, 8626–8638 (2009).CrossRefGoogle Scholar
[11] Gurtovenko, A. A. and Gotlib, Y. Y., J. Chem. Phys. 115, 6785–6793 (2001).CrossRefGoogle Scholar
[12] Cavicchi, K. A. and Lodge, T. P., Macromolecules 36, 7158–7164 (2003).CrossRefGoogle Scholar
[13] Choi, S. H., Lodge, T. P., and Bates, F. S., Phys. Rev. Lett. 104, 4 (2010).Google Scholar
[14] Stukalin, E. B., Douglas, J. F., and Freed, K. F., Journal of Chemical Physics 129, (2008).CrossRefGoogle Scholar
[15] Douglas, J. F. and Hubbard, J. B., Macromolecules 24, 3163–3177 (1991).CrossRefGoogle Scholar
[16] Rehage, H. and Hoffmann, H., Mol. Phys. 74, 933–973 (1991).10.1080/00268979100102721CrossRefGoogle Scholar
[17] Bartsch, E., Antonietti, M., Schupp, W., and Sillescu, H., J. Chem. Phys. 97, 3950–3963 (1992).CrossRefGoogle Scholar
[18] Alegria, A., Colmenero, J., Mari, P., and Campbell, I., Phys. Rev. E 59, 6888–6895 (1999).CrossRefGoogle Scholar
[19] Struik, L. C. E., Aging in Amorphous Polymers and Other Materials (Elsevier, New York, 1978). See Fig. 34 for creep data for diverse materials.Google Scholar
[20] Lin, D. C., Douglas, J. F., and Horkay, F., Soft Matter 6, 3548 (2010).CrossRefGoogle Scholar
[21] Douglas, J. F., Dudowicz, J., and Freed, K. F., J. Chem. Phys. 128, (2008).CrossRefGoogle Scholar
[22] Peleg, M., Rheol. Acta 32, 575–580 (1993).CrossRefGoogle Scholar
[23] Peleg, M., Cereal Chem. 73, 712–715 (1996).Google Scholar
[24] Nakanishi, S., Yoshikawa, H., Shoji, S., Sekkat, Z., and Kawata, S., J. Phys. Chem. B 112, 3586–3589 (2008).CrossRefGoogle Scholar
[25] Kumar, S. K. and Douglas, J. F., Phys. Rev. Lett. 87, 4 (2001).Google Scholar