Abstract
The structure-property relationships are presented for two new organic/inorganic hybrid network systems which were prepared by the sol gel method using either titanium tetraisopropoxide or zirconium tetra-n-propoxide with silane end-capped poly(tetramethylene oxide) (PTMO) oligomers. These novel network materials, broadly referred to as CERAMERs, are optically transparent and monolithic in form, as were CERAMERs prepared with PTMO and tetraethylorthosilicate (TEOS) as the metal alkoxide in the sol gel process. The dynamic mechanical behavior of the titanium- and zirconium-containing CERAMERs exhibit similar trends as reported for the TEOS/PTMO CERAMERs. The stress-elongation response, however, exhibits yielding behavior and higher moduli and ultimate stress at break. The small-angle X-ray scattering (SAXS) behavior of these materials indicates a morphology similar to that measured in other CERAMERs prepared previously. A morphological model developed for these novel hybrid materials is described. Preliminary dynamic dielectric behavior were interpreted in terms of the polarization phenomena known as the Maxwell-Wagner-Sillar effect.
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Brennan, A.B., Wang, B., Rodrigues, D.E. et al. Structure-property behavior of novel Ti/poly(tetramethylene oxide) (PTMO) and Zr/PTMO hybrid CERAMER materials prepared by the sol gel method. J Inorg Organomet Polym 1, 167–187 (1991). https://doi.org/10.1007/BF00701317
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DOI: https://doi.org/10.1007/BF00701317