Superflexible Multifunctional Polyvinylpolydimethylsiloxane‐Based Aerogels as Efficient Absorbents, Thermal Superinsulators, and Strain Sensors

Aerogels are porous materials but show poor mechanical properties and limited functionality, which significantly restrict their practical applications. Preparation of highly bendable and processable aerogels with multifunctionality remains a challenge. Herein we report unprecedented superflexible ae...

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Bibliographic Details
Published inAngewandte Chemie International Edition Vol. 57; no. 31; pp. 9722 - 9727
Main Authors Zu, Guoqing, Kanamori, Kazuyoshi, Maeno, Ayaka, Kaji, Hironori, Nakanishi, Kazuki
Format Journal Article
LanguageEnglish
Published Germany Wiley Subscription Services, Inc 26.07.2018
EditionInternational ed. in English
Subjects
absorbents
Aerogels
Bulk density
Freeze drying
Hydrophobicity
Mechanical properties
multifunctional
Nanocomposites
Polydimethylsiloxane
Polymerization
Pore size
Porosity
Porous materials
Pressure
Strain
strain sensors
superinsulators
multifunctional
aerogels
absorbents
strain sensors
superinsulators
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Summary:Aerogels are porous materials but show poor mechanical properties and limited functionality, which significantly restrict their practical applications. Preparation of highly bendable and processable aerogels with multifunctionality remains a challenge. Herein we report unprecedented superflexible aerogels based on polyvinylpolydimethylsiloxane (PVPDMS) networks, PVPDMS/polyvinylpolymethylsiloxane (PVPMS) copolymer networks, and PVPDMS/PVPMS/graphene nanocomposites by a facile radical polymerization/hydrolytic polycondensation strategy and ambient pressure drying or freeze drying. The aerogels have a doubly cross‐linked organic–inorganic network structure consisting of flexible polydimethylsiloxanes and hydrocarbon chains with tunable cross‐linking density, tunable pore size and bulk density. They have a high hydrophobicity and superflexibility and combine selective absorption, efficient separation of oil and water, thermal superinsulation, and strain sensing. Making plans for my gel: Doubly cross‐linked organic–inorganic hybrid aerogels are synthesized by a facile radical polymerization/hydrolytic polycondensation strategy. The aerogels are highly flexible, processable, show multifunctionality with an excellent combination of selective absorption, efficient separation of oil and water, thermal superinsulation, and strain sensing.
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ISSN:1433-7851
1521-3773
DOI:10.1002/anie.201804559