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Inorganic-Organic Hybrid Polymers from Surface-Modified Oxometallate Clusters

Published online by Cambridge University Press:  01 February 2011

Ulrich Schubert ,
Gregor Trimmel ,
Bogdan Moraru ,
Walter Tesch ,
Peter Fratzl ,
Silvia Gross ,
Guido Kickelbick  and
Nicola Hüsing
Ulrich Schubert
Affiliation:
Institut für Anorganische Chemie, Technische Universität Wien, Getreidemarkt 9, A-1060 Wien, Austria
Gregor Trimmel
Affiliation:
Institut für Anorganische Chemie, Technische Universität Wien, Getreidemarkt 9, A-1060 Wien, Austria
Bogdan Moraru
Affiliation:
Institut für Anorganische Chemie, Technische Universität Wien, Getreidemarkt 9, A-1060 Wien, Austria
Walter Tesch
Affiliation:
Ludwig Boltzmann Institut für Osteologie, Hanusch Krankenhaus, Heinrich Collin Str. 30, 1140 Wien, Austria Erich Schmid Institut für Materialwissenschaft der ÖAW & Universität Leoben, Jahnstr. 12, A-8700 Leoben, Austria
Peter Fratzl
Affiliation:
Erich Schmid Institut für Materialwissenschaft der ÖAW & Universität Leoben, Jahnstr. 12, A-8700 Leoben, Austria
Silvia Gross
Affiliation:
Institut für Anorganische Chemie, Technische Universität Wien, Getreidemarkt 9, A-1060 Wien, Austria
Guido Kickelbick
Affiliation:
Institut für Anorganische Chemie, Technische Universität Wien, Getreidemarkt 9, A-1060 Wien, Austria
Nicola Hüsing
Affiliation:
Institut für Anorganische Chemie, Technische Universität Wien, Getreidemarkt 9, A-1060 Wien, Austria
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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.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 628: Symposium CC – Hybrid Organic/Inorganic Materials , 2000 , CC2.3
Copyright
Copyright © Materials Research Society 2000

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References

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