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C. Maurer, N. Zwirchmayr, U. Schubert:
"Trialkoxysilyl-modified polyphosphazenes";
Talk: 6. Workshop Anorganische Chemie in Österreich (6.WACÖ), Johannes Kepler Universität, Linz; 2010-03-29 - 2010-03-30; in: "Book of Abstracts", (2010), V44.

In modern polymer science great thermal stability can not only reached by adding inorganic compounds to an organic polymer, but also a change of the polymer backbone is an alternative access to improve the thermal properties. In this case inorganic polymers like polysiloxanes or polyphosphazenes can deliver this thermal stability.
Polyphosphazenes are well known for applications like elastomers with great thermal stability, biodegradable materials or electrolyte for fuel cells. To achieve these properties a kind of cross-linking is necessary. While different ways of cross-linking are well investigated, polymer links formed by a sol-gel process are hardly known.
The focus of the current work was to synthesize new polyphosphazenes with the possibility of building a siloxane/polyphosphazene hybrid material. According to the work of Rose et al. on alkoxysilyl modified cyclophosphazenes we tried to insert 3-amino-propyltrialkoxysilyl groups in polyphosphazenes. Cross-linking should be achieved by a hydrolytic sol-gel process to form an inorganic-inorganic network.

Project Head Ulrich Schubert:
Polymere aus funktionellen Clustern