Effects of Phenyltriethoxysilane Concentration in Starting Solutions on Thermal Properties of Polyphenylsilsesquioxane Particles Prepared by a Two-Step Acid-Base Catalyzed Sol-Gel Process

TAKAHASHI, Kenji; TADANAGA, Kiyoharu; MATSUDA, Atsunori; HAYASHI, Akitoshi; TATSUMISAGO, Masahiro

doi:10.2109/jcersj.115.131


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Effects of Phenyltriethoxysilane Concentration in Starting Solutions on Thermal Properties of Polyphenylsilsesquioxane Particles Prepared by a Two-Step Acid-Base Catalyzed Sol-Gel Process

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Title:	Effects of Phenyltriethoxysilane Concentration in Starting Solutions on Thermal Properties of Polyphenylsilsesquioxane Particles Prepared by a Two-Step Acid-Base Catalyzed Sol-Gel Process
Authors:	TAKAHASHI, Kenji Browse this author
	TADANAGA, Kiyoharu Browse this author →KAKEN DB
	MATSUDA, Atsunori Browse this author
	HAYASHI, Akitoshi Browse this author
	TATSUMISAGO, Masahiro Browse this author
Keywords:	Sol-gel method
	Organic-inorganic hybrid naterial
	Polyphenylsilsesquioxane
	Paticle
	Glass transition
Issue Date:	1-Feb-2007
Publisher:	Ceramic Society of Japan
Journal Title:	Journal of the Ceramic Society of Japan
Journal Title(alt):	日本セラミックス協会学術論文誌
Volume:	115
Issue:	1338
Start Page:	131
End Page:	135
Publisher DOI:	10.2109/jcersj.115.131
Abstract:	Spherical polyphenylsilsesquioxane particles were prepared by a two-step acid-base catalyzed sol-gel process, in which various amounts of ethanol were used as a solvent to vary the concentration of phenyltriethoxysilane (PhSi(OEt)3) used as a starting alkoxide. The decrease in the PhSi(OEt)3 concentration led to the decrease in the average molecular weight and glass transition temperature of the polyphenylsilsesquioxanes. Thus, the change of the PhSi(OEt)3 concentration in the preparation of polyphenylsilsesquioxane particles by the two-step acid-base catalyzed sol-gel process is an effective means to control the glass transition temperature of the particles.
Rights:	https://creativecommons.org/licenses/by-nd/4.0/deed.ja
Type:	article
URI:	http://hdl.handle.net/2115/73937
Appears in Collections:	工学院・工学研究院 (Graduate School of Engineering / Faculty of Engineering) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)

Submitter: 忠永清治

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