Heat- and Light-Responsive Materials Through Pairing Dynamic Thiol-Michael and Coumarin Chemistry

被引:14
作者
Chakma, Progyateg [1 ]
Wanasinghe, Shiwanka V. [1 ]
Morley, Colleen N. [1 ]
Francesconi, Sebastian C. [1 ]
Saito, Kei [2 ]
Sparks, Jessica L. [3 ]
Konkolewicz, Dominik [1 ]
机构
[1] Miami Univ, Dept Chem & Biochem, 651 E High St, Oxford, OH 45056 USA
[2] Kyoto Univ, Grad Sch Adv Integrated Studies Human Survivabil, Sakyo Ku, Yoshida Nakaadachicho 1, Kyoto 6068306, Japan
[3] Miami Univ, Dept Chem Paper & Biomed Engn, 650 E High St, Oxford, OH 45056 USA
基金
美国国家科学基金会;
关键词
coumarin; covalent adaptable networks; dynamic bonding; photochemistry; responsive materials; self‐ healing materials; thiol– Michael bonding;
D O I
10.1002/marc.202100070
中图分类号
O63 [高分子化学(高聚物)];
学科分类号
070305 ; 080501 ; 081704 ;
摘要
Covalent adaptable networks (CANs) based on the thiol-Michael (TM) linkages can be thermal and pH responsive. Here, a new vinyl-sulfone-based thiol-Michael crosslinker is synthesized and incorporated into acrylate-based CANs to achieve stable materials with dynamic properties. Because of the reversible TM linkages, excellent temperature-responsive re-healing and malleability properties are achieved. In addition, for the first time, a photoresponsive coumarin moiety is incorporated with TM-based CANs to introduce light-mediated reconfigureability and postpolymerization crosslinking. Overall, these materials can be on demand dynamic in response to heat and light but can retain mechanical stability at ambient condition.
引用
收藏
页数:6
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