科研之友
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摘要
It is a challenge to synthesize materials that possess the properties of high stretchability and self-healability. Herein a new poly(dimethylsiloxane) elastomer with high stretchability, room-temperature self-healability, repeatable reprocessability, and controlled degradability is reported by incorporating an aromatic disulfide bond and imine bond. The as-prepared elastomer can be stretched to over 2200% of its original length. Without external stimuli, a damaged sheet can completely heal in 4 h. In addition, the elastomer can be reprocessed multiple times without obvious performance degradation and degraded controllably by three ways. All these properties of the elastomer can be ascribed to the unique dual-dynamic-covalent sacrificial system.
- 出版日期2018-4
- 单位天津大学
