Li, Yicheng;
Du, Mengqi;
Yang, Li;
Bao, Yunjia;
Xu, Yewei;
Yin, Qiang;
Lan, Yang;
(2021)
Hydrophilic domains compose of interlocking cation-? blocks for constructing hard actuator with robustness and rapid humidity responsiveness.
Chemical Engineering Journal
, 414
, Article 128820. 10.1016/j.cej.2021.128820.
Preview |
PDF
CEJ-D-20-18815_R1.pdf - Accepted Version Download (2MB) | Preview |
Abstract
Biomimetic actuators have seemingly infinite potential for use in previously unexplored areas. However, large stresses and a rapid water response are difficult to realize in soft actuators, owing to which their practical applicability is currently limited. In this paper, a new method for designing and fabricating humidity-responsive sturdy hard actuator. By combining a rigid matrix and hydrophilic water domains consisting of dynamic interlocking cation-π blocks, high-performance polymer actuator was synthesized that swell rapidly in response to a water gradient in their environment, resulting in unprecedentedly large stresses. More critically, the strong interlocking cation-π blocks reform and the intermolecular distance is reduced when the water is removed, allowing the deformed actuator to revert its original shape. The proposed design principle can potentially be extended to produce different types of sturdy actuators with rapid water responsiveness.
| Type: | Article |
|---|---|
| Title: | Hydrophilic domains compose of interlocking cation-? blocks for constructing hard actuator with robustness and rapid humidity responsiveness |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.1016/j.cej.2021.128820 |
| Publisher version: | https://doi.org/10.1016/j.cej.2021.128820 |
| Language: | English |
| Additional information: | This version is the author accepted manuscript. For information on re-use, please refer to the publisher’s terms and conditions. |
| Keywords: | Science & Technology, Technology, Engineering, Environmental, Engineering, Chemical, Engineering, Actuators, Hydrophilic domains, Robustness, Rapid humidity responsiveness, Cation-? interactions, PI INTERACTIONS, FLOW-CONTROL, TRANSPORT, MEMBRANES, HYDROGELS, DRIVEN, FIELD |
| UCL classification: | UCL UCL > Provost and Vice Provost Offices > UCL BEAMS UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science > Dept of Chemical Engineering |
| URI: | https://discovery-pp.ucl.ac.uk/id/eprint/10161528 |
Archive Staff Only
 |
View Item |
