New types of multifunctional liquid crystalline photochromic copolymers for optical data recording and storage

ABSTRACTA new family of light-controllable chiral photochromic multifunctional liquid crystalline (LC) side-chain acrylic polymers consisting of nematogenic, chiral and photochromic monomer units was obtained. The new principle of photoregulation of the helical supramolecular structure and optical properties of the binary and ternary chiral photochromic LC polymers based on the change of helical twisting power of the chiral photochromic monomer units was developed. The features of photooptical behaviour of LC polymers possessing the dual photochromism and the peculiarities of optical data recording based on the photochemical spectral gap burning were presented and discussed. The synthesized polymers are shown to be promising candidates for colour data recording and storage.

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A new type of multifunctional material based on dual photochromism of ternary chiral photochromic liquid crystalline copolymers for optical data recording and storage

Journal of Materials Chemistry ◽

10.1039/a909279j ◽

2000 ◽

Vol 10 (5) ◽

pp. 1075-1081 ◽

Cited By ~ 23

Author(s):

Alexey Bobrovsky ◽

Natalia Boiko ◽

Valery Shibaev

Keyword(s):

Liquid Crystalline ◽

Optical Data ◽

Data Recording ◽

Multifunctional Material ◽

New Type ◽

And Storage

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Photochromic chiral liquid-crystalline mixed formulations: A new class of materials for data recording and storage

Journal of Optical Technology ◽

10.1364/jot.66.000574 ◽

1999 ◽

Vol 66 (6) ◽

pp. 574 ◽

Cited By ~ 1

Author(s):

A. Yu. Bobrovski ◽

N.I. Boiko ◽

V. P. Shibaev

Keyword(s):

Liquid Crystalline ◽

Data Recording ◽

New Class ◽

Mixed Formulations ◽

And Storage

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Engineering Achiral Liquid Crystalline Polymers for Chiral Self-Recovery

International Journal of Molecular Sciences ◽

10.3390/ijms222111980 ◽

2021 ◽

Vol 22 (21) ◽

pp. 11980

Author(s):

Tengfei Miao ◽

Xiaoxiao Cheng ◽

Yilin Qian ◽

Yaling Zhuang ◽

Wei Zhang

Keyword(s):

Liquid Crystal ◽

Liquid Crystalline ◽

Uv Light ◽

Helical Structure ◽

Side Chain ◽

Liquid Crystal Polymers ◽

Polymeric Liquid ◽

Crystalline Polymers ◽

Liquid Crystal System ◽

And Storage

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.

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