Abstract
Synthesized were organically modified silicate (ORMOSILs) hybrids containing colloidal silica as an ingredient, starting from poly (dimethylsiloxane) (PDMS), tetraethoxysilane (TEOS) and calcium nitrate through sol-gel processing. The effects of pre-hydrolysis of TEOS on mechanical strength and viscoelasticity were examined. A sample of composition PDMS/TEOS = 0.60 (molar ratio) with pre-hydrolysis of TEOS showed about 65% maximum failure strain. Thus obtained hybrid exhibited a peak at around -75°C in the storage modulus-temperature curve of the hybrid, due to transverse movements of the PDMS chains. This hybrid, heated at 200°C deposited apatite within 1 d in the simulated body fluid of the Kokubo recipe.
| Original language | English |
|---|---|
| Pages (from-to) | 318-322 |
| Number of pages | 5 |
| Journal | Nippon Seramikkusu Kyokai Gakujutsu Ronbunshi/Journal of the Ceramic Society of Japan |
| Volume | 111 |
| Issue number | 1293 |
| Publication status | Published - May 2003 |
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Keywords
- Apatite
- Bioactivity
- Compressive strength
- Organic-inorganic hybrid
- Sol-gel
- Viscoelasticity
ASJC Scopus subject areas
- Ceramics and Composites
Cite this
Bioactivity of viscoelastic ormosil-type organic-inorganic hybrids containing colloidal silica particles. / Aburatani, Yasushi; Tsuru, Kanji; Hayakawa, Satoshi; Osaka, Akiyoshi.
In: Nippon Seramikkusu Kyokai Gakujutsu Ronbunshi/Journal of the Ceramic Society of Japan, Vol. 111, No. 1293, 05.2003, p. 318-322.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Bioactivity of viscoelastic ormosil-type organic-inorganic hybrids containing colloidal silica particles
AU - Aburatani, Yasushi
AU - Tsuru, Kanji
AU - Hayakawa, Satoshi
AU - Osaka, Akiyoshi
PY - 2003/5
Y1 - 2003/5
N2 - Synthesized were organically modified silicate (ORMOSILs) hybrids containing colloidal silica as an ingredient, starting from poly (dimethylsiloxane) (PDMS), tetraethoxysilane (TEOS) and calcium nitrate through sol-gel processing. The effects of pre-hydrolysis of TEOS on mechanical strength and viscoelasticity were examined. A sample of composition PDMS/TEOS = 0.60 (molar ratio) with pre-hydrolysis of TEOS showed about 65% maximum failure strain. Thus obtained hybrid exhibited a peak at around -75°C in the storage modulus-temperature curve of the hybrid, due to transverse movements of the PDMS chains. This hybrid, heated at 200°C deposited apatite within 1 d in the simulated body fluid of the Kokubo recipe.
AB - Synthesized were organically modified silicate (ORMOSILs) hybrids containing colloidal silica as an ingredient, starting from poly (dimethylsiloxane) (PDMS), tetraethoxysilane (TEOS) and calcium nitrate through sol-gel processing. The effects of pre-hydrolysis of TEOS on mechanical strength and viscoelasticity were examined. A sample of composition PDMS/TEOS = 0.60 (molar ratio) with pre-hydrolysis of TEOS showed about 65% maximum failure strain. Thus obtained hybrid exhibited a peak at around -75°C in the storage modulus-temperature curve of the hybrid, due to transverse movements of the PDMS chains. This hybrid, heated at 200°C deposited apatite within 1 d in the simulated body fluid of the Kokubo recipe.
KW - Apatite
KW - Bioactivity
KW - Compressive strength
KW - Organic-inorganic hybrid
KW - Sol-gel
KW - Viscoelasticity
UR - http://www.scopus.com/inward/record.url?scp=0038649651&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=0038649651&partnerID=8YFLogxK
M3 - Article
AN - SCOPUS:0038649651
VL - 111
SP - 318
EP - 322
JO - Nippon Seramikkusu Kyokai Gakujutsu Ronbunshi/Journal of the Ceramic Society of Japan
JF - Nippon Seramikkusu Kyokai Gakujutsu Ronbunshi/Journal of the Ceramic Society of Japan
SN - 1882-0743
IS - 1293
ER -