Skip to main content Accessibility help

Nanostructured Organic/Inorganic Films from Poly (D-Lysine Hydrobromide) or Poly(N-Methyl.4-Vinyl Pyridinium Bromide) and Hectorite

  • Elaine R. Kleinfeld (a1) and Gregory S. Ferguson (a1)


Establishing the generality of any new preparative method is important for its future usefulness in applications of interest. In this paper, we build on results reported earlier for the formation of nanostructured ultrathin films from macromolecular precursors (a particular cationic polyelectrolyte and inorganic sheet silicate) by demonstrating that the method can readily be adapted to different polymers and more complex adsorption schemes. In particular, we used ellipsometry to monitor the regular growth of films incorporating poly(D-lysine hydrobromide) or poly(N-methyl-4-vinylpyridinium bromide) (PMVP) and hectorite. For the PMVP/ hectorite films, X-ray diffraction confirmed the presence of structural order by revealing a lattice spacing of 1.5 nm.



Hide All
1. Katz, H.E., Scheller, G., Putvinski, T.M., Schilling, M.L., Wilson, W.L., Chidsey, C.E.D., Science 254, 1485 (1991).
2. U, D., Ratner, M.A., Marks, T.J., Zhang, C., Yang, J., Wong, G.K., J. Am. Chem. Soc. 112, 7389 (1990).
3. Nagendra, C.L. and Thutupalli, G.K.M., Applied Optics 27, 2320 (1988); P. Dhez, Thin Solid Films 175, 151 (1989).
4. Kaneko, F., Shibata, M., Inaba, Y., Kobayashi, S., Thin Solid Films 179, 121 (1989).
5. Brousseau, L.C., Aoki, K., Garcia, M.E., Cao, G., Mallouk, T.E., in Multifunctional Mesoporous Inorganic Solids, edited by Sequeira, C.A.C. and Hudson, M.J. (Kluwer Academic Publishers, Boston, 1993), pp. 225236.
6. Ulman, A., An Introduction to Ultrathin Organic Films: From Langmuir-Blodgett to Self-Assembly. (Academic Press, Boston, MA, 1991.)
7. Netzer, L., Iscovici, R., Sagiv, J., Thin Solid Films 99, 235 (1983).
8. Cao, G., Hong, H.-G., Mallouk, T.E., Acc. Chem. Res. 25, 420 (1992). H.C. Yang, K. Aoki, H.-G. Hong, D.D. Sackett, M.F. Arendt, S.-L. Yau, C.M. Bell, T.E. Mallouk, J. Am. Chem. Soc. 115, 11855 (1993).
9. Evans, S.D., Ulman, A., Goppert-Berarducci, K.E., Gerenser, L.J., J. Am. Chem. Soc. 113, 5866 (1991).
10. Katz, H.E., Schilling, M.L., Chem. Mater. 5, 1162 (1993); L.J. Kepley, D.D. Sackett, C.M. Bell, T.E. Mallouk, Thin Solid Films 208, 132 (1992).
11. Lvov, Y., Haas, H., Decher, G., Möhwald, H., Kalachev, A., J. Phys. Chem. 97, 12835 (1993), and references therein.
12. Schmitt, J., Grünewald, T., Decher, G., Pershan, P.S., Kjaer, K., Losche, M., Macromolecules 26, 7058 (1993).
13. Cheung, J.H., Fou, A.F., Rubner, M.F., Thin Solid Films 244,985 (1994).
14. Cooper, T.M., Campbell, A.L., Noffsinger, C., Gunther-Greer, J., Crane, R.L., and Adams, W. Wade, in Molecularly Designed Ultrafine/Nanostructured Materials, edited by Gonsalves, K.E., Chow, G.-M, Xiao, D.D., and Cammarata, R.C. (Mat. Res. Soc. Symp. Proc. 351, San Francisco, CA, 1994) pp. 239244.
15. Kleinfeld, E.R. and Ferguson, G.S., Science 265, 370 (1994).
16. The silicate sheets are 9.6 Å in thickness and approximately 300 Å in diameter.
17. Evidence for regular growth of thin films by alternate adsorption of polyanions such as α-Zr(HPO4)2 and Ti2NbO7- and polycations such as polyallylamine and cytochrome c has recently been reported; see: Keller, S.W., Kim, H.-N., Mallouk, T.E., J. Am. Chem. Soc. 116, 8817 (1994).
18. Nakamura, Y., Yamagishi, A., Matumoto, S., Tohkubo, K., Ohtu, Y., Yamaguchi, M., J. Chromatography 482, 165 (1989).
19. Lacroix, P.G., Clement, R., Nakatani, K., Zyss, J., Ledoux, I., Science 263, 658 (1994).
20. Substrates for these adsorptions were pre-treated by performing two adsorption cycles using a 5% (w/w) solution of PDDA and a 0.2% w/w hectorite suspension under conditions described previously (see reference 15). The substrates were primed in this way to provide a hectoritecoated substrate so that we could focus on multilayer formation independently from the issue of the affinity of the particular polymer for the native oxide on the silicon wafer.
21. Poly(D-lysine hydrobromide) was obtained from Sigma; Laponite RD was obtained from Laporte Industries Limited.
22. Poly(N-methyl-4-vinylpyridinium bromide) was obtained from Polysciences.
23. Decher, G., Lvov, Y., Schmitt, J., Thin Solid Films 244, 772 (1994).
24. We have not yet attempted to obtain XRD patterns of the other structures discussed in this paper.


Full text views

Total number of HTML views: 0
Total number of PDF views: 0 *
Loading metrics...

Abstract views

Total abstract views: 0 *
Loading metrics...

* Views captured on Cambridge Core between <date>. This data will be updated every 24 hours.

Usage data cannot currently be displayed