Abstract
Polydimethylsiloxane (PDMS)-TiO2 hybrids with PDMS (M=550)/tetraethylorthotitanate molar ratios at 0.27, 0.68 and 1.35, i.e. Si/Ti atomic ratios at 2, 5 and 10 (hybrids PD2, PD5 and PD10, respectively) were prepared by a sol–gel method. Hybrid PD2 formed many cracks. Hybrids PD5 and PD10 were subjected to hot-water treatment 80 °C for 7 d. Hybrid PD5 produced cracks, whereas hybrid PD10 was crack-free after the hot-water treatment. Hybrid PD10 took a homogeneous amorphous structure before the hot-water treatment, and precipitated anatase particles 10–20 nm in size after the hot-water treatment. Hybrid PD10 did not form apatite on its surface in a simulated body fluid before the hot-water treatment, but formed it after the hot-water treatment. The obtained hybrid showed elastic deformation as large as 200% after the hot-water treatment. This kind of hybrid could be useful as a new type of bone-repairing material. ©2003 Kluwer Acadamic Publishers
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Kamitakahara, M., Kawashita, M., Miyata, N. et al. Apatite formation on CaO-free polydimethylsiloxane (PDMS)-TiO2 hybrids. Journal of Materials Science: Materials in Medicine 14, 1067–1072 (2003). https://doi.org/10.1023/B:JMSM.0000004003.41223.36
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DOI: https://doi.org/10.1023/B:JMSM.0000004003.41223.36