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DOI | 10.1126/science.aat2975 |
Key-and-lock commodity self-healing copolymers | |
Urban, Marek W.1,2,3; Davydovich, Dmitriy1,3; Yang, Ying1,3; Demir, Tugba1,3; Zhang, Yunzhi2; Casabianca, Leah2 | |
2018-10-12 | |
发表期刊 | SCIENCE |
ISSN | 0036-8075 |
EISSN | 1095-9203 |
出版年 | 2018 |
卷号 | 362期号:6411页码:220-+ |
文章类型 | Article |
语种 | 英语 |
国家 | USA |
英文摘要 | Self-healing materials are notable for their ability to recover from physical or chemical damage. We report that commodity copolymers, such as poly(methyl methacrylate)/n-butyl acrylate [p(MMA/nBA)] and their derivatives, can self-heal upon mechanical damage. This behavior occurs in a narrow compositional range for copolymer topologies that are preferentially alternating with a random component (alternating/random) and is attributed to favorable interchain van der Waals forces forming key-and-lock interchain junctions. The use of van der Waals forces instead of supramolecular or covalent rebonding or encapsulated reactants eliminates chemical and physical alterations and enables multiple recovery upon mechanical damage without external intervention. Unlike other self-healing approaches, perturbation of ubiquitous van der Waals forces upon mechanical damage is energetically unfavorable for interdigitated alternating/random copolymer motifs that facilitate self-healing under ambient conditions. |
领域 | 地球科学 ; 气候变化 ; 资源环境 |
收录类别 | SCI-E |
WOS记录号 | WOS:000447337200054 |
WOS关键词 | POLYURETHANE NETWORKS ; POLYMERS ; TEMPERATURE ; COMPOSITES ; RELAXATION ; BONDS |
WOS类目 | Multidisciplinary Sciences |
WOS研究方向 | Science & Technology - Other Topics |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/199820 |
专题 | 地球科学 资源环境科学 气候变化 |
作者单位 | 1.Clemson Univ, Dept Mat Sci & Engn, Clemson, SC 29634 USA; 2.Clemson Univ, Dept Chem, Clemson, SC 29634 USA; 3.Clemson Univ, COMSET, Clemson, SC 29634 USA |
推荐引用方式 GB/T 7714 | Urban, Marek W.,Davydovich, Dmitriy,Yang, Ying,et al. Key-and-lock commodity self-healing copolymers[J]. SCIENCE,2018,362(6411):220-+. |
APA | Urban, Marek W.,Davydovich, Dmitriy,Yang, Ying,Demir, Tugba,Zhang, Yunzhi,&Casabianca, Leah.(2018).Key-and-lock commodity self-healing copolymers.SCIENCE,362(6411),220-+. |
MLA | Urban, Marek W.,et al."Key-and-lock commodity self-healing copolymers".SCIENCE 362.6411(2018):220-+. |
条目包含的文件 | 条目无相关文件。 |
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