Engineering Achiral Liquid Crystalline Polymers for Chiral Self-Recovery.
Int J Mol Sci
; 22(21)2021 Nov 05.
Article
in En
| MEDLINE
| ID: mdl-34769412
ABSTRACT
Flexible construction of permanently stored supramolecular chirality with stimulus-responsiveness remains a big challenge. Herein, we describe an efficient method to realize the transfer and storage of chirality in intrinsically achiral films of a side-chain polymeric liquid crystal system by combining chiral doping and cross-linking strategy. Even the helical structure was destroyed by UV light irradiation, the memorized chiral information in the covalent network enabled complete self-recovery of the original chiral superstructure. These results allowed the building of a novel chiroptical switch without any additional chiral source in multiple types of liquid crystal polymers, which may be one of the competitive candidates for use in stimulus-responsive chiro-optical devices.
Key words
Full text:
1
Collection:
01-internacional
Database:
MEDLINE
Main subject:
Polymers
/
Liquid Crystals
Language:
En
Journal:
Int J Mol Sci
Year:
2021
Document type:
Article
Affiliation country: