Conductive Elastomers with Autonomic Self-Healing Properties

Healable, electrically conductive materials are highly desirable and valuable for the development of various modern electronics. But the preparation of a material combining good mechanical elasticity, functional properties, and intrinsic self‐healing ability remains a great challenge. Here, we desig...

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Bibliographic Details
Published in:Angewandte Chemie International Edition 2015-10, Vol.54 (41), p.12127-12133
Main Authors: Guo, Kun, Zhang, Da-Li, Zhang, Xiao-Mei, Zhang, Jian, Ding, Li-Sheng, Li, Bang-Jing, Zhang, Sheng
Format: Article
Language:English
Subjects:
conductivity
Elasticity
elastomers
Elastomers - chemistry
Electric Conductivity
Electrical resistivity
host-guest interactions
Humidity
Joining
Nanotechnology
Nanotechnology - methods
Nanotubes
Nanotubes, Carbon - chemistry
Nanotubes, Carbon - ultrastructure
Networks
Proximity
Resistivity
self-healing properties
Single wall carbon nanotubes
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Summary:Healable, electrically conductive materials are highly desirable and valuable for the development of various modern electronics. But the preparation of a material combining good mechanical elasticity, functional properties, and intrinsic self‐healing ability remains a great challenge. Here, we design composites by connecting a polymer network and single‐walled carbon nanotubes (SWCNTs) through host–guest interactions. The resulting materials show bulk electrical conductivity, proximity sensitivity, humidity sensitivity and are able to self‐heal without external stimulus under ambient conditions rapidly. Furthermore, they also possess elasticity comparable to commercial rubbers. Candidates for smart robotics: Self‐healing conductive composites were prepared by connecting single‐walled carbon nanotubes (SWCNTs) to a polymer network through host–guest interactions (see picture). The poly(2‐hydroxyethyl methacrylate)–SWCNT composite combines bulk electrical conductivity, proximity sensitivity, humidity sensitivity, and autonomic self‐healing properties.
ISSN:1433-7851
1521-3773
DOI:10.1002/anie.201505790