Sol-gel preparation of nanosheet-dispersed hybrids using n-alkoxy derivatives of ion-exchangeable layered perovskites as nanobuilding blocks

Seiichi Tahara; Takafumi Okamoto; Yosuke Takeda; Yoshiyuki Sugahara

Sol-gel preparation of nanosheet-dispersed hybrids using n-alkoxy derivatives of ion-exchangeable layered perovskites as nanobuilding blocks

Seiichi Tahara, Takafumi Okamoto, Yosuke Takeda, Yoshiyuki Sugahara

School of Advanced Science and Engineering

Research output: Contribution to conference › Paper › peer-review

Abstract

Two different kinds of composites possessing perovskite-related nanosheets were prepared via sol-gel process using n-alkoxy derivatives of ion-exchangeable layered perovskites. One kind of the hybrids was prepared via the cohydrolysis of the n-decoxy derivative of an ion-exchangeable layered perovskite, HLaNb ₂O₇·xH₂O or HCa₂Nb ₃O₁₀·xH₂O, tetramethoxysilane (TMOS) and silanol terminated polydimethylsiloxane (PDMS). The other kind of hybrid was prepared via cohydrolysis of n-decoxy derivatives of HCaNb and TMOS. The XRD pattern and TEM image of both composites showed the exfoliation of layered perovskites and the nanosheets was dispersed in siloxane networks. These results suggest that the n-alkoxy derivatives of ion-exchangeable layered perovskites can be utilized as nanobuilding blocks for the preparation of nanosheet-dispersed composites via sol-gel process.

Original language	English
Pages	3055-3056
Number of pages	2
Publication status	Published - 2006 Dec 1
Event	55th Society of Polymer Science Japan Symposium on Macromolecules - Toyama, Japan Duration: 2006 Sep 20 → 2006 Sep 22

Other

Other	55th Society of Polymer Science Japan Symposium on Macromolecules
Country	Japan
City	Toyama
Period	06/9/20 → 06/9/22

Keywords

Alcohol-exchange
Exfoliation
Hydrolysis
Nanosheet
Sol-gel reaction

ASJC Scopus subject areas

Engineering(all)

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Sol-gel preparation of nanosheet-dispersed hybrids using n-alkoxy derivatives of ion-exchangeable layered perovskites as nanobuilding blocks. / Tahara, Seiichi; Okamoto, Takafumi; Takeda, Yosuke; Sugahara, Yoshiyuki.

2006. 3055-3056 Paper presented at 55th Society of Polymer Science Japan Symposium on Macromolecules, Toyama, Japan.

Research output: Contribution to conference › Paper › peer-review

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title = "Sol-gel preparation of nanosheet-dispersed hybrids using n-alkoxy derivatives of ion-exchangeable layered perovskites as nanobuilding blocks",

abstract = "Two different kinds of composites possessing perovskite-related nanosheets were prepared via sol-gel process using n-alkoxy derivatives of ion-exchangeable layered perovskites. One kind of the hybrids was prepared via the cohydrolysis of the n-decoxy derivative of an ion-exchangeable layered perovskite, HLaNb 2O7·xH2O or HCa2Nb 3O10·xH2O, tetramethoxysilane (TMOS) and silanol terminated polydimethylsiloxane (PDMS). The other kind of hybrid was prepared via cohydrolysis of n-decoxy derivatives of HCaNb and TMOS. The XRD pattern and TEM image of both composites showed the exfoliation of layered perovskites and the nanosheets was dispersed in siloxane networks. These results suggest that the n-alkoxy derivatives of ion-exchangeable layered perovskites can be utilized as nanobuilding blocks for the preparation of nanosheet-dispersed composites via sol-gel process.",

keywords = "Alcohol-exchange, Exfoliation, Hydrolysis, Nanosheet, Sol-gel reaction",

author = "Seiichi Tahara and Takafumi Okamoto and Yosuke Takeda and Yoshiyuki Sugahara",

year = "2006",

month = dec,

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AU - Tahara, Seiichi

AU - Okamoto, Takafumi

AU - Takeda, Yosuke

AU - Sugahara, Yoshiyuki

PY - 2006/12/1

Y1 - 2006/12/1

N2 - Two different kinds of composites possessing perovskite-related nanosheets were prepared via sol-gel process using n-alkoxy derivatives of ion-exchangeable layered perovskites. One kind of the hybrids was prepared via the cohydrolysis of the n-decoxy derivative of an ion-exchangeable layered perovskite, HLaNb 2O7·xH2O or HCa2Nb 3O10·xH2O, tetramethoxysilane (TMOS) and silanol terminated polydimethylsiloxane (PDMS). The other kind of hybrid was prepared via cohydrolysis of n-decoxy derivatives of HCaNb and TMOS. The XRD pattern and TEM image of both composites showed the exfoliation of layered perovskites and the nanosheets was dispersed in siloxane networks. These results suggest that the n-alkoxy derivatives of ion-exchangeable layered perovskites can be utilized as nanobuilding blocks for the preparation of nanosheet-dispersed composites via sol-gel process.

AB - Two different kinds of composites possessing perovskite-related nanosheets were prepared via sol-gel process using n-alkoxy derivatives of ion-exchangeable layered perovskites. One kind of the hybrids was prepared via the cohydrolysis of the n-decoxy derivative of an ion-exchangeable layered perovskite, HLaNb 2O7·xH2O or HCa2Nb 3O10·xH2O, tetramethoxysilane (TMOS) and silanol terminated polydimethylsiloxane (PDMS). The other kind of hybrid was prepared via cohydrolysis of n-decoxy derivatives of HCaNb and TMOS. The XRD pattern and TEM image of both composites showed the exfoliation of layered perovskites and the nanosheets was dispersed in siloxane networks. These results suggest that the n-alkoxy derivatives of ion-exchangeable layered perovskites can be utilized as nanobuilding blocks for the preparation of nanosheet-dispersed composites via sol-gel process.

KW - Alcohol-exchange

KW - Exfoliation

KW - Hydrolysis

KW - Nanosheet

KW - Sol-gel reaction

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