Skip to main content Accessibility help
×
Home

Inorganic-Organic Hybrid Polymers from Surface-Modified Oxometallate Clusters

  • Ulrich Schubert (a1), Gregor Trimmel (a1), Bogdan Moraru (a1), Walter Tesch (a2) (a3), Peter Fratzl (a3), Silvia Gross (a1), Guido Kickelbick (a1) and Nicola Hüsing (a1)...

Abstract

Inorganic-organic hybrid polymers were prepared by radical polymerization of methacrylic acid or methyl methacrylate with the (meth) acrylate-substituted oxozirconium and oxotitanium clusters Zr6(OH)4O4(OMc)12(OMc = methacrylate), Zr4O2(OMc)12, Ti6O4(OEt)8(OMc)8 and Ti4O2(OPri)6(OAcr)6(OAcr = acrylate). A few mol% of cluster is sufficient for an efficient cross-linking of the polymer chains. Small-angle X-ray scattering data indicate that the cluster size is retained in the polymers and that the microstructure of the cluster cross-linked samples can be described by a dispersion of identical spherical or disk-shaped clusters in the polymer. The obtained hybrid polymers exhibit a higher thermal stability because depolymerization reactions are inhibited. Contrary to undoped poly (methyl methacrylate), the cluster cross-linked polymers are insoluble but swell in organic solvents. The solvent uptake upon swelling decreases with an increasing amount of polymerized cluster.

Copyright

References

Hide All
1. For example: Schwab, J. J., Lichtenhan, J. D., Chaffee, K. P., Mather, P. T., Romo-Uribe, A., Mat. Res. Soc. Symp. Proc.,, 519, 21 (1998).
Lichtenhan, J. D., Haddad, T. S., Schwab, J. J., Karr, M. J., Chaffee, K. P., Mather, P. T., Polym. Prep.,, 39 (1), 489 (1998).
Pynn, J., Matyjaszewski, K., Macromolecules,, 33, 217 (2000).
2. For example: Sellinger, A., Laine, R. M., Macromolecules,, 29, 2327 (1996).
Lin, E. K., Snyder, C.-R., Mopsik, F. I., Wallace, W. E., Wu, W. L., Zhang, C. X., Laine, R. M., Mat. Res. Soc. Symp. Proc.,, 519, 15 (1998).
3. Ribot, F., Banse, F., Sanchez, C., Lahcini, M., Jousseaumme, B., J. Sol-Gel Sci. Technol.,, 8, 529 (1997).
Angiolini, L., Caretti, D., Carlini, C., De Vito, R., Niesel, F. T., Salatelli, E., Ribot, F., Sanchez, C., J. Inorg. Organomet. Polym.,, 7, 151 (1998).
4. Hubert-Pfalzgraf, L. G., Pajot, N., Papiernik, R., Parraud, S., Mat. Res. Soc. Symp. Proc.,, 435, 137 (1996).
5. Mayer, C. R., Thouvenot, R., Lalot, T., Chem.Mater.,, 12, 257 (2000).
6. Kickelbick, G., Schubert, U., Mat. Res. Soc. Symp. Proc.,, 519, 401 (1998).
7. Kickelbick, G., Schubert, U., Chem.Ber.,, 130, 473 (1997).
8. Trimmel, G., Gross, S., Kickelbick, G., Schubert, U., Appl. Organomet. Chem., in press.
9. Kickelbick, G., Wiede, P., Schubert, U., Inorg. Chim. Acta,, 284, 1 (1999).
10. Trimmel, G., Gross, S., Kickelbick, G., Schubert, U., unpublished.
11. Schubert, U., Arpac, E., Glaubitt, W., Helmerich, A., Chau, C., Chem.Mater., 4, 291 (1992).
12. Moraru, B., Kickelbick, G., Schubert, U., unpublished.
13. Kickelbick, G., Schubert, U., Europ. J. Inorg. Chem. 159 (1998).
14. A typical procedure is as follows: To a solution of 2.62 g (26.2 mmol) methyl methacrylate (filtered over alumina to remove the stabilizer) and 0.91 g (0.54 mmol) of 1 in 6 ml benzene, 21 mg (0.09 mmol) of dibenzoylperoxide were added. When heated to 65 °C, the solution became turbid after 2–3 h and then solidified. Heating was continued for 9–10 h, and then the solvent was removed at 70 °C / 8 mbar. The remaining benzene was extracted with ethyl acetate, and then the solvent was again removed under reduced pressure. The olefin: initiator: solvent ratio was kept constant when the cluster: olefin ratio was varied.
15. Guinier, A., Fournet, G., Small-Angle Scattering of X-rays (Wiley, 1955).
16. Zernicke, F., Prins, J. A., Z. Physik,, 41, 184 (1927).
Debye, P., Physik. Z.,, 28, 135 (1927).
17. Besecke, S., Schröder, G., Gänzler, W., German patent DE 31 37 840 C2 (1981).
18. Di Maggio, R., Fambri, L., Guerriero, A., Chem. Mater.,, 10, 1777 (1998).
Sanchez, C., In, M., J. Non-Cryst. Solids,, 147&148, 1 (1992).
In, M., Gerardin, C., Lambard, J., Sanchez, C., J. Sol-Gel Sci. Technol.,, 5, 101 (1995).
Camail, M., Humbert, M., Margaillan, A., Vernet, J. L., Polymer,, 39, 6533 (1998).
19. Neher, H. T., Conn, W. R., Kroeker, E. H., US patent US 2,502,411 (1947).

Metrics

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