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Neutron scattering study of the dynamics of a polymer melt under nanoscopic confinement

J. Chem. Phys. 131, 174901 (2009); doi:10.1063/1.3258329

Published 4 November 2009

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Margarita Krutyeva,1 Jaime Martin,2 Arantxa Arbe,3 Juan Colmenero,3,4 Carmen Mijangos,2 Gerald J. Schneider,5 Tobias Unruh,6 Yixi Su,5 and Dieter Richter1
1Institut für Festkörperforschung, Forschungszentrum Jülich, Jülich 52425, Germany
2Instituto de Ciencia y Tecnología de Polímeros, CSIC, 28066 Madrid, Spain
3Centro de Física de Materiales (CSIC-UPV/EHU), Materials Physics Center (MPC), 20080 San Sebastián, Spain
4Departamento de Física de Materiales, UPV/EHU, 20080 San Sebastián, Spain and Donostia International Physics Center, 20080 San Sebastián, Spain
5Jülich Centre of Neutron Research (JCNS) at FRM II, Garching 85747, Germany
6Forschungsneutronenquelle Heinz Maier-Leibnitz (FRM II), Garching 85747, Germany
Poly(ethylene oxide) confined in an anodic aluminum oxide solid matrix has been studied by different neutron scattering techniques in the momentum transfer (Q-vector) range 0.2<=Q=|Q-vector |<=1.9  Å−1. The cylindrical pores of the matrix present a diameter (40 nm) much smaller than their length (150  µm) and are parallel and hexagonally ordered. In particular, we investigated the neutron intensity scattered for two orientations of the sample with respect to the incident beam, for which the Q-vector direction was either parallel or perpendicular to the pores for a scattering angle of 90°. Diffuse neutron scattering at room temperature has shown that the aluminum oxide has amorphous structure and the polymer in the nanoporous matrix is partially crystallized. Concerning the dynamical behavior, for Q<1  Å−1, the spectra show Rouse-like motions indistinguishable from those in the bulk within the uncertainties. In the high-Q limit we observe a slowing down of the dynamics with respect to the bulk behavior that evidences an effect of confinement. This effect is more pronounced for molecular displacements perpendicular to the pore axis than for parallel displacements. Our results clearly rule out the strong corset effect proposed for this polymer from nuclear magnetic resonance (NMR) studies and can be rationalized by assuming that the interactions with the pore walls affect one to two adjacent monomer monolayers. ©2009 American Institute of Physics
History: Received 9 June 2009; accepted 14 October 2009; published 4 November 2009
Permalink: http://link.aip.org/link/?JCPSA6/131/174901/1
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KEYWORDS and PACS

Keywords
PACS
  • 61.25.hk
    Structure of polymer melts and blends
  • 82.45.Fk
    Electrochemical electrodes
  • 82.45.Mp
    Thin layers, films, monolayers, membranes (electrochemistry)
  • 76.60.Es
    Relaxation effects (condensed matter NMR)
  • YEAR: 2009

PUBLICATION DATA

ISSN:
0021-9606 (print)   1089-7690 (online)
Publisher:
AIP is a member of CrossRef AIP

REFERENCES (44)
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  1. Y. Mai and Z. Yu, Polymer Nanocomposites (CRC, Boca Raton, FL, 2006).
  2. M. Zhang, P. Dobriyal, J. -T. Chen, and T. Russell, Nano Lett. 6, 1075 (2006).
  3. M. Koza, B. Frick, and R. Zorn, Eur. Phys. J. Spec. Top. 3, 141 (2007).
  4. J. -M. Zanotti, L. J. Smith, D. L. Price, and M. -L. Saboungi, Mater. Res. Soc. Symp. Proc. 790, 187 (2004).
  5. T. Dollase, R. Graf, A. Heuer, and H. W. Spiess, Macromolecules 34, 298 (2001).
  6. H. D. Rowland, W. P. King, J. B. Pethica, and G. L. W. Cross, Science 322, 720 (2008).
  7. P. G. de Gennes, Scaling Concepts in Polymer Physics (Cornell University Press, Ithaka, 1979).
  8. M. Doi and S. Edwards, The Theory of Polymer Dynamics (Clarendon, Oxford, 1986).
  9. A. Wischnewski, M. Monkenbusch, L. Willner, D. Richter, A. E. Likhtman, T. C. B. McLeish, and B. Farago, Phys. Rev. Lett. 88, 058301 (2002).
  10. P. Schleger, B. Farago, C. Lartigue, A. Kollmar, and D. Richter, Phys. Rev. Lett. 81, 124 (1998).
  11. M. Zamponi, M. Monkenbusch, L. Willner, A. Wischnewski, B. Farago, and D. Richter, Europhys. Lett. 72, 1039 (2005).
  12. M. Zamponi, M. Monkenbusch, L. Willner, D. Richter, A. E. Likhtman, G. Kali, and B. Farago, Phys. Rev. Lett. 96, 238302 (2006).
  13. P. J. Rouse, J. Chem. Phys. 21, 1272 (1953).
  14. N. Fatkullin, R. Kimmich, E. Fischer, C. Mattea, U. Beginn, and M. Kroutieva, New J. Phys. 6, 46 (2004).
  15. K. Niedzwiedz, A. Wischnewski, W. Pyckhout-Hintzen, J. Allgaier, D. Richter, and A. Faraone, Macromolecules 41, 4866 (2008).
  16. R. Kausik, C. Mattea, N. Fatkullin, and R. Kimmich, J. Chem. Phys. 124, 114903 (2006).
  17. D. Richter, M. Monkenbusch, A. Arbe, and J. Colmenero, Adv. Polym. Sci. 174, 1 (2005).
  18. J. Colmenero, A. Alegria, A. Arbe, and B. Frick, Phys. Rev. Lett. 69, 478 (1992).
  19. A. Arbe, J. Colmenero, F. Alvarez, M. Monkenbusch, D. Richter, B. Farago, and B. Frick, Phys. Rev. E 67, 051802 (2003).
  20. D. Richter, M. Monkenbusch, J. Allgaier, A. Arbe, J. Colmenero, B. Farago, Y. Cheol Bae, and R. Faust, J. Chem. Phys. 111, 6107 (1999).
  21. D. Richter, M. Monkenbusch, L. Willner, A. Arbe, J. Colmenero, and B. Farago, Europhys. Lett. 66, 239 (2004).
  22. T. C. B. McLeish, Adv. Phys. 51, 1379 (2002).
  23. H. Masuda and K. Fukuda, Science 268, 1466 (1995).
  24. N. Heymans, Macromolecules 33, 4226 (2000).
  25. M. Steinhart, J. H. Wendorff, A. Greiner, R. B. Wherspohn, K. Nielsch, J. Schilling, J. Choi, and U. Gösele, Science 296, 1997 (2002).
  26. J. Martín and C. Mijangos, Langmuir 25, 1181 (2009).
  27. S. S. W. Lovesey, Theory of Neutron Scattering from Condensed Matter (Clarendon, Oxford, 1984).
  28. T. Unruh, J. Neuhaus, and W. Petry, Nucl. Instrum. Methods Phys. Res. A 580, 1414 (2007).
  29. http://sourceforge.net/projects/frida
  30. K. Niedzwiedz, A. Wischnewski, M. Monkenbusch, D. Richter, A. -C. Genix, A. Arbe, J. Colmenero, M. Strauch, and E. Straube, Phys. Rev. Lett. 98, 168301 (2007).
  31. M. Brodeck, F. Alvarez, A. Arbe, F. Juranyi, T. Unruh, O. Holderer, J. Colmenero, and D. Richter, J. Chem. Phys. 130, 094908 (2009).
  32. A. -C. Genix, A. Arbe, F. Alvarez, J. Colmenero, L. Willner, and D. Richter, Phys. Rev. E 72, 031808 (2005).
  33. A. Tyagi, A. Arbe, J. Colmenero, B. Frick, and J. R. Stewart, Macromolecules 39, 3007 (2006).
  34. A. Arbe, J. Colmenero, F. Alvarez, M. Monkenbusch, D. Richter, B. Farago, and B. Frick, Phys. Rev. Lett. 89, 245701 (2002).
  35. G. D. Smith, D. Y. Yoon, R. L. Jaffe, R. H. Colby, R. Krishnamoorti, and L. J. Fetters, Macromolecules 29, 3462 (1996).
  36. E. Fischer, R. Kimmich, and N. Fatkullin, J. Chem. Phys. 106, 9883 (1997).
  37. M. Kehr, N. Fatkullin, and R. Kimmich, J. Chem. Phys. 126, 094903 (2007).
  38. E. Fischer, R. Kimmich, U. Beginn, M. Moller, and N. Fatkullin, Phys. Rev. E 59, 4079 (1999).
  39. R. Kimmich, R. -O. Seitter, U. Beginn, M. Moller, and N. Fatkullin, Chem. Phys. Lett. 307, 147 (1999).
  40. C. Mattea, N. Fatkullin, E. Fischer, U. Beginn, E. Anoardo, M. Kroutieva, and R. Kimmich, Appl. Magn. Reson. 27, 371 (2004).
  41. N. Fatkullin and R. Kimmich, Phys. Rev. E 52, 3273 (1995).
  42. J. -M. Zanotti, L. J. Smith, D. L. Price, and M. -L. Saboungi, Ann. Chim. Sci. Mater. 30, 353 (2004).
  43. S. Stapf and R. Kimmich, Macromolecules 29, 1638 (1996).
  44. S. Ayalur-Karunakaran, B. Blümich, and S. Stapf, Eur. Phys. J. E 26, 43 (2008).

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