Design, synthesis and application of hydrogen bonded smectic liquid crystal matrix encapsulated ZnO nanospikes

Pal, Kaushik; Mohan, M. L. N. Madhu; Zhan, Bihong; Wang, Guoping

doi:10.1039/c5tc02436f

Cited by 40 publications

(9 citation statements)

References 38 publications

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“…Furthermore, new phenomena were found inside H-bonded supramolecular LC/ZnO nanospike composites [ 151 ]. By polarized optical microscopy, different phases were observed, but also lower temperature transitions, fast response times and high switching rates compared to the pure LC samples.…”

Section: Hydrogen-bonded Supramolecular Self-assemblies Of Inorganmentioning

confidence: 99%

Smart Supramolecular Self-Assembled Nanosystem: Stimulus-Responsive Hydrogen-Bonded Liquid Crystals

Liu

Yang

et al. 2021

Nanomaterials

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In a liquid crystal (LC) state, specific orientations and alignments of LC molecules produce outstanding anisotropy in structure and properties, followed by diverse optoelectronic functions. Besides organic LC molecules, other nonclassical components, including inorganic nanomaterials, are capable of self-assembling into oriented supramolecular LC mesophases by non-covalent interactions. Particularly, huge differences in size, shape, structure and properties within these components gives LC supramolecules higher anisotropy and feasibility. Therefore, hydrogen bonds have been viewed as the best and the most common option for supramolecular LCs, owing to their high selectivity and directionality. In this review, we summarize the newest advances in self-assembled structure, stimulus-responsive capability and application of supramolecular hydrogen-bonded LC nanosystems, to provide novel and immense potential for advancing LC technology.

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Section: Hydrogen-bonded Supramolecular Self-assemblies Of Inorganmentioning

confidence: 99%

Smart Supramolecular Self-Assembled Nanosystem: Stimulus-Responsive Hydrogen-Bonded Liquid Crystals

Liu

Yang

et al. 2021

Nanomaterials

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“…In liquid crystal phase, the molecules are with enough disorder that offers flow properties, and some degree of ordering that leads to anisotropy. [1][2][3][4] This phase offers higher degree of orientational order to a liquid and a less positional order to a crystal. The molecules ordering in a liquid crystal phase may be either translational and/or rotational.…”

Section: Introductionmentioning

confidence: 99%

Mesophase behaviour of a cyanobiphenyl molecule in polar aprotic solvent: Rigidity effect

Nayak¹,

Praveen²

2020

JPS

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In this paper, a theoretical study has been carried out on a liquid crystal compound named p-n-propyl cyanobiphenyl (3CB). The different modes of interaction energy values in a polar aprotic solvent (ethyl acetate) for small amount of translation and rotation are calculated. The corresponding probabilities have been calculated at both room temperature (300 K) and transition temperature (303.3 K). The rigidity parameter for stacking and in-plane interactions has been estimated and then the stability of molecule according to probability and rigidity at definite translation and rotation has been concluded. The change in the characteristics and stability of the compound at transition temperature has been observed. The dependence of mesophase behaviour with change in the certain configurations and orientation of the molecules have been discussed. These observed results provide an insight about the process of mesophase structure and its formation. The present compound may guide in establishing the other molecular models with transition temperature nearer to room temperature.

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“…Following this approach, several supramolecular complexes (SCPs) have been designed as potential components in electrolytes for advanced electrochromic devices, by the combination of metal ions, such as alkali metal ions, and ionogens, such as carboxylic and sulfonic acid groups . Various materials containing LCs have been synthesized recently with the aim of controlling their electronic transmission properties through the formation of anisotropic morphologies …”

Section: Introductionmentioning

confidence: 99%

“…[22][23][24] Various materials containing LCs have been synthesized recently with the aim of controlling their electronic transmission properties through the formation of anisotropic morphologies. [25][26][27][28] In the work reported here, we first used a side chain liquid-crystalline polysiloxane as a matrix polymer to synthesize new types of CuPc-based SCPs, in which a cholesteryl benzoate group was used as a mesogen. Self-assembled SCPs were prepared via hydrogen bonding using the synthesized sulfonic acid-containing polysiloxanes (SAPs) and CuPc.…”

Section: Introductionmentioning

confidence: 99%

Supramolecular complexes based on liquid‐crystalline polysiloxanes and copper phthalocyanine

Kong

Song

Bai

et al. 2018

Polymer International

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Self‐assembly of mesogens in one polymer system reflects the capability for integrating intermolecular interactions and functions of materials. A series of novel supramolecular complexes (SCPs) containing cholesterol derivatives, siloxane backbone and copper phthalocyanine were synthesized. The SCPs were made from sulfonic acid‐containing precursor polymers (SAPs) synthesized by the use of 4‐(allyloxy)benzenesulfonic acid, cholest‐5‐en‐3‐ol‐(3β)‐4‐(allyloxy)benzoate and polymethylhydrosiloxane. Differential scanning calorimetry, polarizing optical microscopy and X‐ray diffraction results confirmed the mesomorphic properties. The SAPs showed smectic phase, but the SCPs showed columnar phase due to more lateral copper phthalocyanine groups in the polymer systems. Moreover, because of rigid side groups and cholesteric polymer, SCPs showed greater d‐spacings between the side mesogenic groups and exhibited very good electrical conductivity. © 2018 Society of Chemical Industry

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Design, synthesis and application of hydrogen bonded smectic liquid crystal matrix encapsulated ZnO nanospikes

Abstract: ZnO nanospikes dispersed hydrogen bonded liquid crystals, due to their novel switching properties, are promising components in a wide range of nanoscale devices for next generation applications.

Cited by 40 publications

References 38 publications

Smart Supramolecular Self-Assembled Nanosystem: Stimulus-Responsive Hydrogen-Bonded Liquid Crystals

Smart Supramolecular Self-Assembled Nanosystem: Stimulus-Responsive Hydrogen-Bonded Liquid Crystals

Mesophase behaviour of a cyanobiphenyl molecule in polar aprotic solvent: Rigidity effect

Supramolecular complexes based on liquid‐crystalline polysiloxanes and copper phthalocyanine

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