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Independently Tuning Elastomer Softness and Firmness by Incorporating Side Chain Mixtures into Bottlebrush Network Strandsстатья
Статья опубликована в высокорейтинговом журнале
Статья опубликована в журнале из списка Web of Science и/или Scopus- Авторы: Keith Andrew N., Clair Charles, Lallam Abdelaziz, Bersenev Egor A., Ivanov Dimitri A., Tian Yuan, Dobrynin Andrey V., Sheiko Sergei S.
- Журнал: Macromolecules
- Год издания: 2020
- Издательство: American Chemical Society
- Местоположение издательства: United States
- DOI: 10.1021/acs.macromol.0c01725
- Аннотация: Softness and firmness are opposing traits that synergistically define the6 elastic response of biological systems. Currently, no single class of synthetic materials7 including elastomers and gels provides independent control of these mechanical8 characteristics, particularly without altering chemical composition. To address this challenge, we explore a hierarchical bottom-up approach via architectural modulation of bottlebrush mesoblocks followed by their self-assembly into linear−brush−linear triblock copolymer networks. By judiciously incorporating side chains of different lengths, we seamlessly demonstrate full control over elastomer firmness at a fixed Young’s modulus, thus bypassing the infinitely laborious synthesis of targeted side chain lengths. This industrially scalable iteration upon the design-by-architecture approach to network construction delivers thermoplastic elastomers with unprecedented softness−firmness combinations desired in soft robotics, flexible electronics, and biomedical devices.
- Добавил в систему: Иванов Дмитрий Анатольевич