Tunable Photocontrolled Motions of Anil‐Poly(ethylene terephthalate) Systems through Excited‐State Intramolecular Proton Transfer and Trans–Cis Isomerization
- 23 December 2020
- journal article
- research article
- Published by Wiley in Advanced Materials
- Vol. 33 (5), e2005249
- https://doi.org/10.1002/adma.202005249
Abstract
With the combination of excited‐state intramolecular proton transfer and trans–cis isomerization as microscopic molecular motions under light stimulus, multiple photodeformable processes are achieved in anil‐poly(ethylene terephthalate) systems, including simple bending, dancing butterflies, and switches. The doping films can realize light‐driven contraction as large as 70% and bending angle of about 141°, upon a simple stretching process. The internal mechanism is confirmed by transient absorption spectra, and the relationship between molecular structure and photocontrolled motion is investigated by theoretical calculations and crystal analysis. This work provides a convenient approach by utilizing anils to fabricate reversible actuations with desirable geometries, greatly contributing to the applications and manufacturing of soft robots and related research.Funding Information
- National Natural Science Foundation of China (51673151, 21734007, 51973162, 21875174)
- Fundamental Research Funds for the Central Universities (2042020kf0200)
This publication has 49 references indexed in Scilit:
- Comparative Investigation of Ultrafast Photoinduced Processes in Salicylidene-Aminopyridine in Solution and Solid StateThe Journal of Physical Chemistry C, 2009
- Nanomotor rotates microscale objectsNature, 2006
- Photochromism and thermochromism of Schiff bases in the solid state: structural aspectsChemical Society Reviews, 2004
- Fast liquid-crystal elastomer swims into the darkNature Materials, 2004
- A New Opto-Mechanical Effect in SolidsPhysical Review Letters, 2001
- Light-Driven Motion of Liquids on a Photoresponsive SurfaceScience, 2000
- Strain‐induced crystallization of poly(ethylene terephthalate)Polymer Engineering & Science, 1992
- A comprehensive investigation of the photophysics and photochemistry of salicylideneaniline and derivatives of phenylbenzothiazole including solvent effectsThe Journal of Physical Chemistry, 1987
- Photomechanical effects in polymers containing 6′-nitro-1,3,3-trimethyl-spiro-(2′H-1′-benzopyran-2,2′-indoline)Polymer, 1982
- The mechanical behavior of poly(ethylene terephthalate)Journal of Macromolecular Science, Part B, 1967