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タイトル: Versatile Double-Cross-Linking Approach to Transparent, Machinable, Supercompressible, Highly Bendable Aerogel Thermal Superinsulators
その他のタイトル: A Versatile Double-Cross-Linking Approach to Transparent, Machinable, Super-Compressible, Highly Bendable Aerogel and Xerogel Thermal Superinsulators
著者: Zu, Guoqing
Kanamori, Kazuyoshi  kyouindb  KAKEN_id
Shimizu, Taiyo
Zhu, Yang
Maeno, Ayaka
Kaji, Hironori  kyouindb  KAKEN_id
Nakanishi, Kazuki  kyouindb  KAKEN_id
Shen, Jun
著者名の別形: 祖, 国慶
金森, 主祥
前野, 綾香
梶, 弘典
中西, 和樹
キーワード: organic-inorganic hybrid
aerogel
double-cross-linking
superflexibility
superinsulation
発行日: 2018
出版者: American Chemical Society (ACS)
誌名: Chemistry of Materials
巻: 30
号: 8
開始ページ: 2759
終了ページ: 2770
抄録: A facile yet versatile approach to transparent, highly flexible, machinable, superinsulating organic-inorganic hybrid aerogels and xerogels is presented. This method involves radical polymerization of a single alkenylalkoxysilane to obtain polyalkenylalkoxysilane, and subsequent hydrolytic polycondensation to afford a homogeneous, doubly cross-linked nanostructure consisting of polysiloxanes and hydrocarbon polymer units. Here we demonstrate that novel aerogels based on polyvinylpolysilsesquioxane (PVPSQ), polyallylpolysilsesquioxane (PAPSQ), polyvinylpolymethylsiloxane (PVPMS), and polyallylpolymethylsiloxane (PAPMS) are facilely prepared via this approach from vinyltrimethoxysilane (VTMS, or vinyltriethoxysilane VTES), allyltrimethoxysilane (ATMS, or allyltriethoxysilane ATES), vinylmethyldimethoxysilane (VMDMS), and allylmethyldimethoxysilane (AMDMS), respectively. These aerogels combine low density, uniform nanopores, high transparency, super-compressibility, high bendability, excellent machinability, and thermal superinsulation (λ=14.5-16.4 mW m−1 K−1). More importantly, transparent, superflexible, superinsulating aerogel-like xerogels are obtained with PVPMS and PAPMS via highly scalable ambient pressure drying without any solvent exchange and modifications for the first time. This work will open a new way to transparent, highly flexible porous materials promising in the practical applications of thermal superinsulators, adsorbents, sensors, etc.
記述: The title of the Submitted Work is 'A Versatile Double-Cross-Linking Approach to Transparent, Machinable, Super-Compressible, Highly Bendable Aerogel and Xerogel Thermal Superinsulators'
著作権等: This document is the unedited author's version of a Submitted Work that was subsequently accepted for publication in Chemistry of Materials, copyright © American Chemical Society after peer review. To access the final edited and published work, see https://doi.org/10.1021/acs.chemmater.8b00563.
This is not the published version. Please cite only the published version. この論文は出版社版でありません。引用の際には出版社版をご確認ご利用ください。
URI: http://hdl.handle.net/2433/232620
DOI(出版社版): 10.1021/acs.chemmater.8b00563
出現コレクション:学術雑誌掲載論文等

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