Liquid Crystals and their Application最新文献_第4页

Discotic Nematic State in a System of Rod-Like Molecules 棒状分子系统中的盘状向列态

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Liquid Crystals and their Application Pub Date : 2023-03-30 DOI: 10.18083/lcappl.2023.1.78

A. Emelyanenko, S. Shvetsov

引用次数: 0

Thermodynamic and Selective Properties of Diatomite Adsorbent Modified by the Mixture of 4-(2-Hydroxyethoxy)-4'-Formylazobenzene and Iron μ-Oxodimer of 2,8,12,18-Tetramethyl-3,7,13,17-Tetra-n-Amylporphin under Conditions of Inverted Gas Chromatography 反相气相色谱条件下4-（2-羟基乙氧基）-4'-甲酰基偶氮苯与2,8,12,18-四甲基-3,7,13,17-四正-氨酰卟啉铁μ-氧二聚物改性硅藻土吸附剂的热力学和选择性

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Liquid Crystals and their Application Pub Date : 2023-03-30 DOI: 10.18083/lcappl.2023.1.16

G. V. Kuvshinov, L. O. Monakhov, A. S. Semeikin, A. A. Batrakova, O. Koifman

引用次数: 0

Filtration Properties of Polarization Holographic Gratings Recorded in Liquid Crystal Composites 液晶复合材料中偏振全息光栅的过滤特性研究

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Liquid Crystals and their Application Pub Date : 2023-03-30 DOI: 10.18083/lcappl.2023.1.50

G. Zharkova, S. Streltsov

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Non-Newtonian Flow of Structured Systems. XXXV. Polymer with Cylindrical Brush Architecture 结构化系统的非牛顿流。第45。聚合物与圆柱刷结构

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Liquid Crystals and their Application Pub Date : 2023-03-30 DOI: 10.18083/lcappl.2023.1.58

M. P. Vekovishchev, E. A. Kirsanov

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Orientational Behavior of Nematic Liquid Crystals in Two-Phase Microfluidic Systems 两相微流控系统中向列型液晶的取向行为

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Liquid Crystals and their Application Pub Date : 2023-03-30 DOI: 10.18083/lcappl.2023.1.28

A. Bezrukov, O. A. Potapov, V. V. Osipova, Y. Galyametdinov

引用次数: 1

Functioning Features of Liquid Crystalline Cells Doped with CoFe2O4 Nanoparticles 掺杂CoFe2O4纳米颗粒液晶电池的功能特性

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Liquid Crystals and their Application Pub Date : 2022-12-22 DOI: 10.18083/lcappl.2022.4.83

N. Kamanina, A. Toikka, Yaroslav V. Barnash, D. Redka, S. V. Lihkomanova, Yu. A. Zybtsova, P. V. Kyzhakov, Z. Jovanović, S. Jovanovic

{"title":"Functioning Features of Liquid Crystalline Cells Doped with CoFe2O4 Nanoparticles","authors":"N. Kamanina, A. Toikka, Yaroslav V. Barnash, D. Redka, S. V. Lihkomanova, Yu. A. Zybtsova, P. V. Kyzhakov, Z. Jovanović, S. Jovanovic","doi":"10.18083/lcappl.2022.4.83","DOIUrl":"https://doi.org/10.18083/lcappl.2022.4.83","url":null,"abstract":"The first experimental results on the functioning of liquid crystal cells doped with CoFe2O4 nanoparticles are presented. Transmission spectra in the visible and near-infrared range, dynamic parameters of the Fredericks effect, refractive characteristics, as well as wetting angles of the mesophase sensitized surfaces have been obtained. The measured surfaces were the K8 Crown glass, the conductive ITO and the ITO treated with a surface electromagnetic wave. The experiment was performed in order to establish the prospect of using such reliefs as a novel liquid crystal composite orientator sensitized with CoFe2O4 nanoparticles. A color change of the liquid crystal matrix, its refractive coefficients alterations, and the variation of inclination angle of the sensitized liquid crystal droplets on the considered reliefs were established. The time reaction parameters and the medium relaxation parameters were measured. It was proposed that the liquid crystal composition is a kind of an immersion medium that preserves properties of the introduced nanoparticles, which expands their application scope in optoelectronics and biomedicine.","PeriodicalId":18138,"journal":{"name":"Liquid Crystals and their Application","volume":" ","pages":""},"PeriodicalIF":0.5,"publicationDate":"2022-12-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45755853","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Luminescence Efficiency of Mesogenic Europium(III) Complexes and their Composites with Polymers According to Quantum-Chemical Simulation 量子化学模拟中生铕（III）配合物及其聚合物复合材料的发光效率

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Liquid Crystals and their Application Pub Date : 2022-12-22 DOI: 10.18083/lcappl.2022.4.6

Kseniya A. Romanova, Y. Galyametdinov

引用次数: 0

Interaction of Components of Epoxy Composite Containing Carbon Nanotubes and Graphene Oxide Mixture 含碳纳米管的环氧复合材料与氧化石墨烯混合物组分的相互作用

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Liquid Crystals and their Application Pub Date : 2022-12-22 DOI: 10.18083/lcappl.2022.4.102

T. Dyachkova, A. Rukhov, Y. Khan, D. Protasov, D. Stolbov, E. Burakova, G. A. Titov, A. Tkachev

{"title":"Interaction of Components of Epoxy Composite Containing Carbon Nanotubes and Graphene Oxide Mixture","authors":"T. Dyachkova, A. Rukhov, Y. Khan, D. Protasov, D. Stolbov, E. Burakova, G. A. Titov, A. Tkachev","doi":"10.18083/lcappl.2022.4.102","DOIUrl":"https://doi.org/10.18083/lcappl.2022.4.102","url":null,"abstract":"Mixtures of carbon nanotubes (CNTs) and graphene oxide (GO) in composite materials often exhibit synergistic effects with respect to mechanical and electrophysical properties. In this paper, the mechanisms of interaction between CNTs, GO and epoxydian resin macromolecules were discussed based on the results of molecular dynamics simulations. Calculations were performed in the MM3 force field at exposure times up to 100 ps. The influence of the CNT’s graphene layers shape and the presence of oxygen-containing functional groups on the self-assembly process during the epoxy composite formation has been demonstrated. It is shown that graphene oxide sheets are arranged around cylindrical nanotubes and envelop them, while when using tapered nanotubes, the formation of alternating layers of CNTs and GO should be expected. The presence of oxygen-containing groups on the surface of cylindrical nanotubes promotes the penetration of epoxydian resin macromolecules into the space between CNTs and GO. The simulation results of the \"cylindrical CNTs - GO\" and the \"conical CNTs - GO\" hybrid particles were confirmed by scanning electron microscopy data.","PeriodicalId":18138,"journal":{"name":"Liquid Crystals and their Application","volume":" ","pages":""},"PeriodicalIF":0.5,"publicationDate":"2022-12-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49555277","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Fluorinated Biphenylpyrimidine as a Possible Matrix for Ferroelectric Liquid Crystal Mixtures 含氟联苯嘧啶作为铁电液晶混合物的可能基质

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Liquid Crystals and their Application Pub Date : 2022-12-22 DOI: 10.18083/lcappl.2022.4.92

katerina M. Budynina, Sofiya I. Torgova, Artemiy V. Kuznetsov, E. Pozhidaev

{"title":"Fluorinated Biphenylpyrimidine as a Possible Matrix for Ferroelectric Liquid Crystal Mixtures","authors":"katerina M. Budynina, Sofiya I. Torgova, Artemiy V. Kuznetsov, E. Pozhidaev","doi":"10.18083/lcappl.2022.4.92","DOIUrl":"https://doi.org/10.18083/lcappl.2022.4.92","url":null,"abstract":"The results of the synthesis and study of a new fluorinated achiral smectic C liquid crystal, namely, 2-(3-fluoro-4'-pentylbiphenyl-4-yl)-5-hexylpyrimidine, are presented. The possibility to use this compound as a matrix for ferroelectric liquid crystal (FLC) mixtures is evaluated. Two mixtures have been prepared: one (FLC-691-F) is based on new fluorinated compound and another (FLC-691) on its non-fluorinated analogue. The diester of optically active 2-octanol and terphenyldicarboxylic acid was used as a chiral dopant for both mixtures. Investigation of these FLC mixtures parameters: phase transition temperatures, helix pitch, spontaneous polarization and tilt angle show significant influence of fluorine atom. When comparing the phase sequence of FLC-691 and FLC-691-F mixtures, one can note that in the fluorine containing mixture an additional smectic A phase arises. At the same temperatures, the helix pitch of FLC-691-F is 2 – 2.5 times less than the helix pitch of FLC-691. The tilt angle of FLC-691-F is much smaller than that of FLC-691 but its value approaches the optimal value of 22.5 degrees, which ensures maximum light transmittance of electro-optical cells. At the same time the presence of fluorine atom in the matrix is a reason for the decrease of the mixture spontaneous polarization and a significant decrease (almost 4 times) in the driving voltage of electro-optical light shutters. As a result, it was shown that the fluorinated matrix provides new possibilities for controlling the mixture parameters.","PeriodicalId":18138,"journal":{"name":"Liquid Crystals and their Application","volume":" ","pages":""},"PeriodicalIF":0.5,"publicationDate":"2022-12-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43218715","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Method of Molecular Parameters for Columnar Mesomorphism Prediction of Tristriazolotriazines 三三氮唑三嗪类化合物柱状介形预测的分子参数方法

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Liquid Crystals and their Application Pub Date : 2022-12-22 DOI: 10.18083/lcappl.2022.4.16

O. Akopova, N. Zharnikova, N. V. Bumbina, A. Smirnova, А. S. Kashitsyn, N. Usol'tseva

引用次数: 0