Unusual Flexibility of Transparent Poly(methylsilsesquioxane) Aerogels by Surfactant-Induced Mesoscopic Fiber Assembly

Author:

Ueoka Ryota1,Hara Yosuke1,Maeno Ayaka2,Kaji Hironori1ORCID,Nakanishi Kazuki3,Kanamori Kazuyoshi1ORCID

Affiliation:

1. Kyoto University

2. Institute for Chemical Research, Kyoto University, Gokasho, Uji, Kyoto 611-0011

3. Nagoya University

Abstract

Abstract We report a new synthetic strategy to realize highly transparent aerogels with outstanding bending flexibility. Taking poly(methylsilsesquioxane) (PMSQ) aerogels as an example, surfactant-induced fiber-like mesoscopic assembly of PMSQ and poly(ethylene oxide)-block-poly(propylene oxide)-block-poly(ethylene oxide) (PEO-b-PPO-b-PEO, so-called Pluronics) has been demonstrated. The obtained PMSQ aerogels possessed a characteristic branched fibrous structure in the mesoscale. With employing various kinds of PEO-b-PPO-b-PEO as the structure determining agent, optimization of the mesoscale structure of PMSQ gels has realized highly transparent aerogels with outstanding bendability compared to those reported in previous works. This approach provides a novel way to thermally superinsulating flexible devices with glasslike transparency.

Publisher

Research Square Platform LLC

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