Hostname: page-component-8448b6f56d-mp689 Total loading time: 0 Render date: 2024-04-24T01:54:55.248Z Has data issue: false hasContentIssue false
  • English
  • Français

Shear-induced ordered structure in polystyrene/clay nanocomposite

Published online by Cambridge University Press:  31 January 2011

Guangming Chen ,
Zongneng Qi  and
Deyan Shen
Guangming Chen
Affiliation:
State Key Laboratory of Engineering Plastics, Center for Molecular Science, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100080, People's Republic of China
Zongneng Qi*
Affiliation:
State Key Laboratory of Engineering Plastics, Center for Molecular Science, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100080, People's Republic of China
Deyan Shen
Affiliation:
Polymer Physics Laboratory, Center for Molecular Science, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100080, People's Republic of China
*
a)Address all correspondence to the author.
Get access

Abstract

A shear-induced ordered structure in an exfoliated polystyrene (PS)/clay nanocomposite is reported. X-ray diffraction (XRD), transmission electron microscopy (TEM), and infrared dichroism techniques have been employed to investigate the shear-induced ordered structure in the exfoliated PS/clay nanocomposite. Compared with the broad amorphous peaks before extrusion, a series of sharp diffraction peaks were observed in XRD pattern for the extruded PS/clay nanocomposite pellet sample, showing that an ordered structure occurred under shear flow. TEM images confirmed directly that the origin of the ordered structure was mainly due to the planar orientation of the primary particles of silicate layers as well as local ordered microstructure of the primary particles, induced by shear flow. The infrared dichroism study indicated that the phenyl group of PS apparently oriented parallel to the film surface, whereas no obvious orientation of the aliphatic chain could be observed. Based on these investigations, a possible mechanism was deduced for the formation of the ordered structure induced by shear flow in the exfoliated PS/clay nanocomposite.

Type
Articles
Information
Journal of Materials Research , Volume 15 , Issue 2 , February 2000 , pp. 351 - 356
Copyright
Copyright © Materials Research Society 2000

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.Schmidt, H., in Polymer Based Molecular Composites, edited by Schaefer, D.W. and Mark, J.E., Mater. Res. Soc.: Pittsburgh, PA, 1990; 3.Google Scholar
2.Novak, B.M., Adv. Mater. 6, 422 (1993).CrossRefGoogle Scholar
3.Lu, S., Melo, M.M., Zhao, J., Pearce, E.M., and Kwei, T.K., Macromolecules 28, 4908 (1995).CrossRefGoogle Scholar
4.Giannelis, E.P., Adv. Mater. 8, 29 (1996).CrossRefGoogle Scholar
5.Chen, G., Ma, Y., Liu, S., and Qi, Z., J. Appl. Polym. Sci. (in press).Google Scholar
6.Okada, A., Kawasumi, M., Kurauchi, T., and Kamigaito, O., Polym. Prepr. 28, 447 (1987).Google Scholar
7.Kojima, Y., Usuki, A., Kawasumi, M., Okada, A., Fukushima, Y., Kurauchi, T., and Kamigaito, O., J. Mater. Res. 8, 1185 (1993).CrossRefGoogle Scholar
8.Fukushima, Y., Okada, A., Kawasumi, M., Kurauchi, T., and Kamigaito, O., Clay Miner. 23, 27 (1988).CrossRefGoogle Scholar
9.Kurauchi, T., Okada, A., Nomura, T., Nishio, T., Saegusa, S., and Deguchi, R., SAE Technical Paper Ser. 910584 (1991).Google Scholar
10.Ke, Y., Long, C., and Qi, Z., J. Appl. Polym. Sci. 71, 1139 (1999).3.0.CO;2-E>CrossRefGoogle Scholar
11.Vaia, R.A., Ishii, H., and Giannelis, E.P., Chem. Mater. 5, 1694 (1993).CrossRefGoogle Scholar
12.Kawasumi, M., Hasegawa, N., Kato, M., Usuki, A., and Okada, A., Macromolecules 30, 6333 (1997).CrossRefGoogle Scholar
13.Wang, M.S. and Pinnavaia, T.J., Chem. Mater. 6, 468 (1994).CrossRefGoogle Scholar
14.Lan, T., Kaviratna, P.D., and Pinnavaia, T.J., Chem. Mater. 7, 2144 (1995).CrossRefGoogle Scholar
15.Wang, S., Long, C., Wang, X., Li, Q., and Qi, Z., J. Appl. Polym. Sci. 69, 1557 (1998).3.0.CO;2-S>CrossRefGoogle Scholar
16.Mehrotra, V. and Giannelis, E.P., Solid State Commun. 77, 155 (1991).CrossRefGoogle Scholar
17.Okada, A., Usuki, A., Kurauchi, T., and Kamigaito, O., in Hybrid Organic-Inorganic Composites, edited by Mark, J.E., Lee, C.Y-C., and Biancom, P.A. (American Chemical Society, Washington, DC, 1995), p. 55;CrossRefGoogle Scholar
Lemmon, J.P., Wu, J., and Lerner, M.M., in Hybrid Organic-Inorganic Campsites, edited by Mark, J.E., Lee, C.Y-C., and Biancom, P.A. (American Chemical Society, Washington, DC, 1995), p. 43.CrossRefGoogle Scholar
18.Vaia, R.A., Vasudevan, S., Krawiec, W., Scanlon, L.G. and Giannelis, E.P., Adv. Mater. 7, 154 (1995).CrossRefGoogle Scholar
19.Liu, L., Qi, Z., and Zhu, X., J. Appl. Polym. Sci. 71, 1133 (1999).3.0.CO;2-N>CrossRefGoogle Scholar
20.Kojima, Y., Usuki, A., Kawasumi, M., Okada, A., Kurauchi, T., Kamigaito, O., and Kaji, K., J. Polym. Sci., Part B: Polym. Phys. 32, 625 (1994).CrossRefGoogle Scholar
21.Kojima, Y., Usuki, A., Kawasumi, M., Okada, A., Kurauchi, T., Kamigaito, O., and Kaji, K., J. Polym. Sci., Part B: Polym. Phys. 33, 1039 (1995).CrossRefGoogle Scholar
22.Kojima, Y., Usuki, A., Kawasumi, M., Okada, A., Kurauchi, T., and Kamigaito, O., J. Polym. Sci., Part A: Polym. Chem. 31, 983 (1993).CrossRefGoogle Scholar
23.Yano, K., Usuki, A., Okada, A., Kurauchi, T., and Kamigaito, O., J. Ploym. Sci., Part A: Polym. Chem. 31, 2493 (1993).CrossRefGoogle Scholar
24.Krishnamoorti, R. and Giannelis, E.P., Macromolecules 30, 4097 (1997).CrossRefGoogle Scholar
25.Larson, R.G., Winey, K.I., Patel, S.S., Watanabe, H., and Bruinsma, R., Rheol. Acta. 32, 245 (1993).CrossRefGoogle Scholar
26.Patel, S.S., Larson, R.G., Winey, K.I., and Watanabe, H., Macromolecules 28, 4313 (1995).CrossRefGoogle Scholar
27.Qi, Z., Wang, F., Ma, Y., and Chen, G., China Patent No. 98103038.6 (1998).Google Scholar
28.Vaia, R.A., Jandt, K.D., Krammer, E.J., and Giannelis, E.P., Chem. Mater. 8, 2628 (1996).CrossRefGoogle Scholar
29.Lagaly, G. and Weiss, A., Kolloid, Z.Z. Polym. 243, 48 (1971).CrossRefGoogle Scholar
30.Vaia, R.A., Jandt, K.D., Krammer, E.J., and Giannelis, E.P., Chem. Mater. 28, 8080 (1995).Google Scholar
31.Liang, C.Y. and Krimm, S., J. Polym. Sci. 27, 241 (1958).CrossRefGoogle Scholar
32.Messersmith, P.B. and Giannelis, E.P., J. Polym. Sci., Part A: Polym. Chem. 33, 1047 (1995).CrossRefGoogle Scholar