Design of element blocks for photoresponsive organosiloxane-based materials

Sufang Guo; Kazuyuki Kuroda; Atsushi Shimojima

doi:10.1007/978-981-13-2889-3_14

Design of element blocks for photoresponsive organosiloxane-based materials

Sufang Guo, Kazuyuki Kuroda, Atsushi Shimojima^*

^*Corresponding author for this work

School of Advanced Science and Engineering

Research output: Chapter in Book/Report/Conference proceeding › Chapter

Abstract

In this chapter, preparation, structures, and photoresponsive properties of various azobenzene-siloxane hybrid nanomaterials based on the design of element blocks are described. Hydrolysis and polycondensation reactions accompanied by self-assembly of different types of azobenzene-functionalized alkoxysilane precursors yield hybrids with ordered mesostructures. Lamellar films show reversible dspacing changes and macroscopic bending-unbending motion by partial trans-cis photoisomerization of the azobenzene groups. Further, incorporation of a cage oligosiloxane into the precursor leads to the formation of cylindrical assemblies, in which efficient photoisomerization of azobenzene is achieved. These findings will contribute to the creation of novel photoresponsive materials.

Original language	English
Title of host publication	New Polymeric Materials Based on Element-Blocks
Publisher	Springer Singapore
Pages	243-252
Number of pages	10
ISBN (Electronic)	9789811328893
ISBN (Print)	9789811328886
DOIs	https://doi.org/10.1007/978-981-13-2889-3_14
Publication status	Published - 2018 Jan 1

Keywords

Azobenzene
Photoresponsive materials
Self-assembly
Siloxane
Sol-gel processing

ASJC Scopus subject areas

Engineering(all)
Materials Science(all)
Chemistry(all)

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10.1007/978-981-13-2889-3_14

Cite this

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abstract = "In this chapter, preparation, structures, and photoresponsive properties of various azobenzene-siloxane hybrid nanomaterials based on the design of element blocks are described. Hydrolysis and polycondensation reactions accompanied by self-assembly of different types of azobenzene-functionalized alkoxysilane precursors yield hybrids with ordered mesostructures. Lamellar films show reversible dspacing changes and macroscopic bending-unbending motion by partial trans-cis photoisomerization of the azobenzene groups. Further, incorporation of a cage oligosiloxane into the precursor leads to the formation of cylindrical assemblies, in which efficient photoisomerization of azobenzene is achieved. These findings will contribute to the creation of novel photoresponsive materials.",

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AU - Shimojima, Atsushi

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AB - In this chapter, preparation, structures, and photoresponsive properties of various azobenzene-siloxane hybrid nanomaterials based on the design of element blocks are described. Hydrolysis and polycondensation reactions accompanied by self-assembly of different types of azobenzene-functionalized alkoxysilane precursors yield hybrids with ordered mesostructures. Lamellar films show reversible dspacing changes and macroscopic bending-unbending motion by partial trans-cis photoisomerization of the azobenzene groups. Further, incorporation of a cage oligosiloxane into the precursor leads to the formation of cylindrical assemblies, in which efficient photoisomerization of azobenzene is achieved. These findings will contribute to the creation of novel photoresponsive materials.

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KW - Photoresponsive materials

KW - Self-assembly

KW - Siloxane

KW - Sol-gel processing

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Design of element blocks for photoresponsive organosiloxane-based materials

Abstract

Keywords

ASJC Scopus subject areas

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