Influence of linking units on the photo responsive studies of azobenzene liquid Crystals: Application in optical storage devices

Shruthi, S.; Šmahel, Michal; Kohout, Michal; Shanker, Govindaswamy; Hegde, Gurumurthy

doi:10.1016/j.molliq.2021.116744

Cited by 8 publications

(3 citation statements)

References 33 publications

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“…Whilst phase transitions from ordered mesophases to disordered melts are common, see for example [75,76], we now investigate whether a combination of light and electrical fields could promote an isothermal transition between different mesophases. Even though the columnar phase cannot be transformed isothermally into a smectic phase by the mere application of electrical fields, [28,62] our results in Fig.…”

Section: 𝐸 𝐿mentioning

confidence: 99%

Light-responsive bent-core liquid crystals as candidates for energy conversion and storage

et al. 2022

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Section: 𝐸 𝐿mentioning

confidence: 99%

Light-responsive bent-core liquid crystals as candidates for energy conversion and storage

et al. 2022

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“…The characteristic absorption peaks of azobenzene compounds are mainly π−π* transition peaks of 280−370 nm and n−π* transition peaks of 420−500 nm. 67 Figures 4a, 4f, and 4g show the reversible photoisomerization of monomer 1 under a 365 nm UV lamp, a 445 nm visible lamp, and natural light irradiation at different times. It was found that, with only 14 s, a back conversion of 94.7% from cis to trans can be achieved, showing that the used 445 nm LED light source can provide a higher back conversion efficiency over time than natural light.…”

Section: Resultsmentioning

confidence: 99%

“…The characteristic absorption peaks of azobenzene compounds are mainly π–π* transition peaks of 280–370 nm and n –π* transition peaks of 420–500 nm Figures a, f, and g show the reversible photoisomerization of monomer 1 under a 365 nm UV lamp, a 445 nm visible lamp, and natural light irradiation at different times.…”

Section: Resultsmentioning

confidence: 99%

Synthesis and Characteristics of Smart Coating Materials for Reversible Double Stimulus-Responsive Oil–Water Separation

Zhang,

Wang,

Qiu

et al. 2024

ACS Appl. Polym. Mater.

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The developed smart coating for water−oil separation, characterized by its mild separation conditions, ease of control, and absence of secondary pollution, holds promising potential for applications in controlled liquid transmission, oil−water separation, smart textiles, and biosensing films. This work focused on synthesizing copolymers that respond to both photon and pH stimuli. Initially, 4-trifluoromethoxy-4′-methacryloxyazobenzene (FMAB) and similar monomers, serving as photon-responsive units with varying carbon chain lengths, were synthesized using different synthetic routes. Such a design approach also aimed to enhance the hydrophobic characteristics of the photoresponsive segments to a certain degree. Theoretically, the impact of the carbonyl position on nucleophilic substitution reactions was investigated through density functional theory (DFT) calculations. These monomers were subsequently copolymerized individually with dimethylaminoethyl methacrylate (DMAEMA), which acts as a pH-responsive unit, using the reversible addition−fragmentation chain transfer (RAFT) technique in a one-step copolymerization process. The polymers were subsequently coated onto glass slides to form films, the contact angles of which could be modulated in response to both light and pH stimuli. To be highlighted, the maximum contact angle change can reach 131°under double stimulation. To ultimately showcase its oil−water separation capabilities, the polymer was combined with a nonwoven fabric to create a membrane. This membrane is capable of reversibly transitioning between hydrophilic−lipophobic and hydrophobic− lipophilic states, demonstrating substantial potential for future advancements in efficient water−oil separation.

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Influence of core fluorination on the phase properties of fan-like azobenzene based supramolecules, their cis-trans photoisomerization and photoluminescence dynamics

Adimule,

Sharma,

Sharma

et al. 2025

Materials Chemistry and Physics

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Influence of linking units on the photo responsive studies of azobenzene liquid Crystals: Application in optical storage devices

Cited by 8 publications

References 33 publications

Light-responsive bent-core liquid crystals as candidates for energy conversion and storage

Light-responsive bent-core liquid crystals as candidates for energy conversion and storage

Synthesis and Characteristics of Smart Coating Materials for Reversible Double Stimulus-Responsive Oil–Water Separation

Influence of core fluorination on the phase properties of fan-like azobenzene based supramolecules, their cis-trans photoisomerization and photoluminescence dynamics

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