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Title: Transparent, Superflexible Doubly Cross-Linked Polyvinylpolymethylsiloxane Aerogel Superinsulators via Ambient Pressure Drying
Authors: Zu, Guoqing
Shimizu, Taiyo
Kanamori, Kazuyoshi  kyouindb  KAKEN_id  orcid (unconfirmed)
Zhu, Yang
Maeno, Ayaka
Kaji, Hironori  kyouindb  KAKEN_id  orcid (unconfirmed)
Shen, Jun
Nakanishi, Kazuki  kyouindb  KAKEN_id  orcid (unconfirmed)
Author's alias: 祖, 国慶
金森, 主祥
前野, 綾香
梶, 弘典
中西, 和樹
Keywords: polyvinylpolymethylsiloxane aerogel
ultralow cost
Issue Date: 2018
Publisher: American Chemical Society (ACS)
Journal title: ACS Nano
Volume: 12
Issue: 1
Start page: 521
End page: 532
Abstract: Aerogels have many attractive properties but are usually costly and too friable, which always limit their practical applications. Besides, almost all of the reinforced aerogels sacrifice the transparency or superinsulating properties. Here we report unprecedented superflexible polyvinylpolymethylsiloxane ((CH2CH)n(CH3)SiO2/2) aerogels that are facilely prepared from a single precursor vinylmethyldimethoxysilane or vinylmethyldiethoxysilane without organic crosslinkers. It is based on a consecution of radical polymerization and hydrolytic polycondensation followed by ultralow-cost, highly scalable ambient pressure drying directly from alcohol as a drying medium without any modification and additional solvent exchange. The resulting aerogels and xerogels show a unique, homogeneous, tunable, highly porous, doubly crosslinked nanostructure with the elastic polymethylsiloxane network crosslinked with flexible hydrocarbon chains. An outstanding combination of ultralow cost, high scalability, uniform pore size, high surface area, high transparency, high hydrophobicity, excellent machinability, superflexibility in compression, superflexibility in bending and superinsulating properties has been achieved in a single aerogel and xerogel for the first time. This study represents a significant progress of porous materials and makes the practical applications of transparent flexible aerogel-based superinsulators realistic.
Description: The title of a Submitted Work is 'Ultralow-cost, Highly Scalable, Transparent, Superflexible Doubly Crosslinked Polyvinylpolymethylsiloxane Aerogel Superinsulators'
Rights: This document is the unedited author's version of a Submitted Work that was subsequently accepted for publication in ACS Nano, copyright © American Chemical Society after peer review. To access the final edited and published work, see
This is not the published version. Please cite only the published version.
DOI(Published Version): 10.1021/acsnano.7b07117
PubMed ID: 29309140
Appears in Collections:Journal Articles

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