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Relevant bibliographies by topics / Liquid crystalline solvents

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Academic literature on the topic 'Liquid crystalline solvents'

Author: Grafiati

Published: 4 June 2021

Last updated: 27 January 2023

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Journal articles on the topic "Liquid crystalline solvents"

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Wilson, Mark R., Jaroslav M. Ilnytskyi, and Lorna M. Stimson. "Computer simulations of a liquid crystalline dendrimer in liquid crystalline solvents." Journal of Chemical Physics 119, no. 6 (2003): 3509–15. http://dx.doi.org/10.1063/1.1588292.

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Idrus-Saidi, Shuhada A., Jianbo Tang, Stephanie Lambie, et al. "Liquid metal synthesis solvents for metallic crystals." Science 378, no. 6624 (2022): 1118–24. http://dx.doi.org/10.1126/science.abm2731.

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In nature, snowflake ice crystals arrange themselves into diverse symmetrical six-sided structures. We show an analogy of this when zinc (Zn) dissolves and crystallizes in liquid gallium (Ga). The low-melting-temperature Ga is used as a “metallic solvent” to synthesize a range of flake-like Zn crystals. We extract these metallic crystals from the liquid metal solvent by reducing its surface tension using a combination of electrocapillary modulation and vacuum filtration. The liquid metal–grown crystals feature high morphological diversity and persistent symmetry. The concept is expanded to oth

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Leigh, William J., and Stephanus Jakobs. "Organic reactions in liquid crystalline solvents. 5." Tetrahedron 43, no. 7 (1987): 1393–408. http://dx.doi.org/10.1016/s0040-4020(01)90258-3.

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Leigh, William J., Debbie T. Frendo, and Paul J. Klawunn. "Organic reactions in liquid crystalline solvents. 1. The thermal cis–trans isomerization of a bulky olefin in cholesteric liquid crystalline solvents." Canadian Journal of Chemistry 63, no. 8 (1985): 2131–38. http://dx.doi.org/10.1139/v85-351.

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The effect of cholesteric liquid crystalline solvents on the energetics of rotational thermal cis–trans isomerization of olefins has been examined. Rate constants have been obtained over a 70-degree temperature range for isomerization of trans-1,2-di-(4-cyanophenyl)-1,2-diphenylethylene in two isotropic solvents and three cholesteric liquid crystals and the Arrhenius parameters determined. The rates of isomerization are found to be consistently slower in the liquid crystalline phases compared to the isotropic solvents. The Arrhenius parameters for isomerization of the olefin in the isotropic s

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Leigh, William J., and D. Scott Mitchell. "Organic reactions in liquid-crystalline solvents. Regiochemical control of bimolecular pericyclic reactions by cholesteric and smectic liquid-crystalline solvents." Journal of the American Chemical Society 114, no. 13 (1992): 5005–10. http://dx.doi.org/10.1021/ja00039a009.

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Leigh, William J. "Organic reactions in liquid crystalline solvents. 2. An investigation into the use of liquid crystalline solvents to effect stereochemical control in the Diels–Alder reaction." Canadian Journal of Chemistry 63, no. 10 (1985): 2736–41. http://dx.doi.org/10.1139/v85-455.

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The possibility of using liquid crystalline solvents to control the stereospecificity of bimolecular reactions as a result of differences in liquid crystalline solvation of the various possible transition states has been examined. The Diels–Alder reactions of 2,5-dimethyl-3,4-diphenylcyclopentadienone with four dienophiles of varying steric size (cyclopentene, cycloheptene, indene, and acenaphthylene) have been carried out in benzene, cholesteryl nonanoate (isotropic), cholesteryl propionate (cholesteric), and 4-ethyl-4′-(4-pentylcyclohexyl)biphenyl (smectic) at 105 °C. In spite of very large

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Carri, Gustavo A., and M. Muthukumar. "Configurations of liquid crystalline polymers in nematic solvents." Journal of Chemical Physics 109, no. 24 (1998): 11117–28. http://dx.doi.org/10.1063/1.477750.

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Chambers, Martin, Rafael Verduzco, James T. Gleeson, Samuel Sprunt, and Antal Jákli. "Calamitic Liquid-Crystalline Elastomers Swollen in Bent-Core Liquid-Crystal Solvents." Advanced Materials 21, no. 16 (2009): 1622–26. http://dx.doi.org/10.1002/adma.200802739.

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Khokarale, Santosh Govind, Piotr Jablonski, Dariush Nikjoo, et al. "Poly (Vinylidene Difluoride) Polymer in 1-Ethyl-3-methylimidazolium Acetate and Acetic Acid Containing Solvents: Tunable and Recoverable Solvent Media to Induce Crystalline Phase Transition and Porosity." Sustainable Chemistry 3, no. 4 (2022): 455–74. http://dx.doi.org/10.3390/suschem3040028.

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In this report, 1-ethyl-3-methylimidazolium acetate, [EMIM][AcO] ionic liquid (IL) and acetic acid (AA) comprised solvents were used for the thermal treatment of poly (vinylidene difluoride), PVDF. Here, besides the various combinations of IL and AA in solvents, the pure IL and AA were also applied as a solvent upon thermal treatments. The samples obtained after the treatment were analysed for structural and crystalline phase changes, porosity, and molecular weight distribution with various analytical techniques. The Kamlet-Taft parameters measurement of the IL and AA containing solvents with

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Inoue, Akio, Yoichiroh Ide, Shyunji Maniwa, Hiroyuki Yamada, and Hiroji Oda. "Properties of ER Fluids Comprised of Liquid Crystalline Polymers." International Journal of Modern Physics B 13, no. 14n16 (1999): 1966–74. http://dx.doi.org/10.1142/s0217979299002022.

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Side-chain liquid crystalline polysiloxanes (LCS) diluted with solvents show a large increase in viscosity and a newtonian flow under an electric field. Two types of solvent-diluted LCSs, A and B, are presented and their properties are described in this paper. Type A shows a large temperature-dependent ER effect a quick response of msec. order to an electric field and a dynamic behavior similar to that of a low molecular weight liquid crystal. Type B shows a stable ER effect throughout a wide range of temperatures up to 150°C, a two-step response of shear stress curve upon application of DC el

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Dissertations / Theses on the topic "Liquid crystalline solvents"

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Smith, Charles Anthony. "Analytical and physicochemical studies of mixed solvents and mesomorphic solvents /." The Ohio State University, 1985. http://rave.ohiolink.edu/etdc/view?acc_num=osu1487260859497215.

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Kempe, Michael David Kornfield Julia A. "Rheology and dynamics of side-group liquid crystalline polymers in nematic solvents /." Diss., Pasadena, Calif. : California Institute of Technology, 2004. http://resolver.caltech.edu/CaltechETD:etd-07202003-103429.

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Bansen, Roman. "Solution growth of polycrystalline silicon on glass using tin and indium as solvents." Doctoral thesis, Humboldt-Universität zu Berlin, Mathematisch-Naturwissenschaftliche Fakultät, 2016. http://dx.doi.org/10.18452/17557.

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Mit der vorliegenden Arbeit wird das Wachstum von polykristallinem Silicium auf Glas bei niedrigen Temperaturen aus metallischen Lösungen in einem Zweistufenprozess untersucht. Im ersten Prozessschritt werden nanokristalline Siliziumschichten (nc-Si) hergestellt, entweder durch die direkte Abscheidung auf geheizten Substraten oder durch als ''Amorphous-Liquid-Crystalline''(ALC)-Umwandlung bezeichnete metall-induzierte Kristallisation. Im zweiten Prozessschritt dienen die Saatschichten als Vorlage für das Wachstum von deutlich größeren Kristalliten durch stationäre Lösungszüchtung. Die ALC-Pr

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Chang, Wei-Shun 1973. "Single molecule study on the conformation, orientation and diffusion anisotropy of conjugated polymer chains in a liquid crystal matrix." Thesis, 2007. http://hdl.handle.net/2152/3554.

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The nature of the solvent plays an important role in the conformation and orientation of polymers in solution. A particularly interesting case is when the solvent itself possesses order, such as when dissolving the polymer in a LC. In this dissertation, the morphology and diffusion behavior of the conjugated, stiff polymer MEH-PPV, (poly[2-methoxy-5((2-ethylhexyl)oxy)-1,4-phenylenevinylene]), in liquid crystal (LC) solvents have been investigated. Using polarization sensitive fluorescence correlation spectroscopy, it was found that in a nematic LC the polymer molecules are extended and highly

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Kempe, Michael David. "Rheology and Dynamics of Side-Group Liquid Crystalline Polymers in Nematic Solvents." Thesis, 2004. https://thesis.library.caltech.edu/2937/1/Thesis_Mike_Kempe.pdf.

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<p>To form a liquid crystalline (LC) gel that retains the ability to respond rapidly to applied fields, it is necessary to work with low polymer concentrations. In turn, to form a dilute polymer network it is necessary to use very long polymers that are soluble in the small molecule LC. This research focuses on the synthesis of ultra-long side-group liquid crystalline polymers (SGLCPs), their properties when dissolved in nematic hosts, and the self-assembly of a nematic gel using an ABA triblock with an SGLCP midblock and LC-phobic end-blocks. Typically, LCs are made from small molecules th

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Kurji, Zuleikha. "Molecular Design of Side-Group Liquid Crystalline Polymers: Understanding Their Interactions with Small Molecule Liquid Crystal Solvent." Thesis, 2013. https://thesis.library.caltech.edu/7882/22/Kurji%20Thesis%20Final%20Draft.pdf.

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Liquid crystal (LC) gels – the combination of macromolecules with small molecule LCs – couple the elasticity and mechanical strength of polymers to the order inherent to LCs and are attractive to many researchers hoping to marry liquid crystals' optical and electro-optical responsiveness with polymers' mechanical strength and ease of processing. In particular, side-group liquid crystal polymers (SGLCPs) are flexible-chain polymers that are functionalized with LC side-groups. Here we introduce the concept of polymer dopants: homogenously dissolved LC-containing SGLCP homopolymers that are

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Scruggs, Neal Robert. "Coupling polymer thermodynamics and viscoelasticity to liquid crystalline order: self-assembly and relaxation dynamics of block copolymers in a nematic solvent." Thesis, 2007. https://thesis.library.caltech.edu/685/3/1_Chapter.pdf.

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The discontinuous change in solvent quality of a liquid crystal (LC) solvent, 5CB, at the nematic-isotropic phase transition produces abrupt changes in the phase behavior of solutions of coil and LC-polymers and in the self-assembly of coil-LC block copolymers. Nematic 5CB is strongly selective for a side-group liquid crystal polymer (SGLCP) and isotropic 5CB is a good solvent for both SGLCP and a random coil (polystyrene, PS). In nematic 5CB, unfavorable LC-PS interactions drive phase separation in SGLCP-PS-LC ternary solutions and drive micellization of PS-SGLCP diblocks. In isotropic 5CB

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Books on the topic "Liquid crystalline solvents"

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Lindon, J. C., and J. W. Emsley. NMR Spectroscopy Using Liquid Crystal Solvents. Elsevier Science & Technology Books, 2018.

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Book chapters on the topic "Liquid crystalline solvents"

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GANAPATHY, SRINIVASAN, and RICHARD G. WEISS. "Liquid-Crystalline Solvents as Mechanistic Probes." In ACS Symposium Series. American Chemical Society, 1985. http://dx.doi.org/10.1021/bk-1985-0278.ch010.

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Halperin, A., and D. R. M. Williams. "Liquid Crystalline Polymers in Nematic Solvents: Extension and Confinement." In Soft Order in Physical Systems. Springer US, 1994. http://dx.doi.org/10.1007/978-1-4615-2458-8_8.

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Luz, Z. "Dynamics of Molecular Processes by NMR in Liquid Crystalline Solvents." In Nuclear Magnetic Resonance of Liquid Crystals. Springer Netherlands, 1985. http://dx.doi.org/10.1007/978-94-009-6517-1_13.

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Pospiech, Doris, Liane Häussier, Brigitte Voit, Frank Böhme, and Hans R. Kricheldorf. "Synthesis of Liquid Crystalline Multiblock Copolymers." In Solvent-Free Polymerizations and Processes. American Chemical Society, 1999. http://dx.doi.org/10.1021/bk-1998-0713.ch002.

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Chidambaram, S., P. D. Butler, W. A. Hamilton, and M. D. Dadmun. "What Is a Model Liquid Crystalline Polymer Solution?: Solvent Effects on the Flow Behavior of LCP Solutions." In ACS Symposium Series. American Chemical Society, 1999. http://dx.doi.org/10.1021/bk-2000-0739.ch023.

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Patel, Sangdil I., and Fred J. Davis. "Liquid crystalline polymers." In Polymer Chemistry. Oxford University Press, 2004. http://dx.doi.org/10.1093/oso/9780198503095.003.0014.

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The idea of combining the anisotropic behaviour of liquid crystalline materials with the properties of macromolecular systems was first suggested by Onsanger and subsequently Flory. The actual realization that such systems could exist came from studies of natural polymers such as the tobacco mosaic virus. Interest in these systems intensified with the development of highstrength systems, based on rigid-rod systems, notably the aramid fibres, however, liquid crystallinity in such systems occurs only at high temperatures, usually close to the decomposition point of the polymer. It was only in the late 1970s that the design criteria for liquid crystalline polymers became apparent, the secret being largely in the decoupling of the rigid aromatic groups which give rise to the anisotropic behaviour. As a result of these ideas two classifications of liquid crystalline materials were described. Main-chain liquid crystalline polymers, are those in which rigid aromatic molecules form part of the polymer backbone, either as a continuous chain or separated by a series of methylene groups in order to lower temperature at which liquid crystalline phase behaviour is observed. Side-chain systems resemble the comb-like systems studied by Shibaev and Plate, and have the rigid aromatic groups attached as a side-chain. In general, the monomer systems required for main-chain liquid crystalline polymers are relatively simple; synthetically these systems are prepared by step-growth methods and the main challenge is often maintaining sufficient solubility to allow suitable chain-lengths to be grown (an example of how such problems might be overcome is given in Chapter 4). Side-chain systems tend to be produced from more complex structural sub-units, and may be produced either by polymerization of the appropriate monomer or by functionalization of a preformed polymer backbone. Examples of both approaches are given in this chapter. From a practical viewpoint, the advantage of side-chain systems is that they tend to be much more soluble in common organic solvents and also that thermal phase transitions occur at reasonable temperatures (reasonable being well below the temperature at which the polymer decomposes). A further advantage of such side-chain systems is that the phase behaviour can be effectively tuned through the chemical modifications of the three components, namely the side-group, the flexible coupling chain and the polymer backbone.

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Vshivkov, Sergey, and Elena Rusinova. "Phase Transitions and Structure of Liquid Crystalline Cellulose Ether Solutions in a Magnetic Field and in Its Absence." In Liquid Crystals [Working Title]. IntechOpen, 2022. http://dx.doi.org/10.5772/intechopen.101451.

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The results of research studies of a magnetic field effect on structure and phase transitions of liquid crystalline polymer systems are described. Influence of intensity of the magnetic field, molecular weight, and concentration of polymers in solutions on the phase diagrams is analyzed. The dependences of boundary curves on the chemical structure of polymers and solvents are discussed. Results of theoretical researches of the magnetic field effect on the diamagnetic macromolecule orientation in solutions are described. The shift of boundary curves of liquid crystalline cellulose derivative systems is compared with the energy of magnetic field stored by solutions.

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KALYANASUNDARAM, K. "Photoprocesses in Monolayers, Black Lipid Membranes, and Liquid Crystalline Solvents." In Photochemistry in Microheterogeneous Systems. Elsevier, 1987. http://dx.doi.org/10.1016/b978-0-12-394995-0.50011-x.

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Klein, Susanne, Robert M. Richardson, and Alexey Eremin. "Liquid crystalline phases in suspensions of pigments in non-polar solvents." In Series in Soft Condensed Matter. WORLD SCIENTIFIC, 2016. http://dx.doi.org/10.1142/9789814619264_0026.

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Guenet, Jean-Michel. "Liquid-crystalline polymers." In Polymer-Solvent Molecular Compounds. Elsevier, 2008. http://dx.doi.org/10.1016/b978-008045144-2.50019-2.

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Conference papers on the topic "Liquid crystalline solvents"

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Chae, Inseok, Amira Meddeb, Zoubeida Ounaies, and Seong H. Kim. "Tailoring and Characterization of the Liquid Crystalline Structure of Cellulose Nanocrystals for Opto-Electro-Mechanical Multifunctional Applications." In ASME 2018 Conference on Smart Materials, Adaptive Structures and Intelligent Systems. American Society of Mechanical Engineers, 2018. http://dx.doi.org/10.1115/smasis2018-8016.

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Liquid crystalline (LC) behaviors of cellulose nanocrystal (CNC), derived from wood, cotton or other cellulose-based biopolymers, have been actively investigated due to their unique optical properties and their superb mechanical properties, which open up potential applications in bioelectronics and biomedical engineering. In particular, many attempts have been made to control phase and orientation of LC-CNCs because they are critical factors deciding optical and mechanical properties, and electromechanical performances. Through the applications of mechanical force, electric field and magnetic

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Devanand, Krisha. "Dynamic light scattering from a side-chain liquid crystalline polymer in a nematic solvent." In Optics, Electro-Optics, and Laser Applications in Science and Engineering, edited by Kenneth S. Schmitz. SPIE, 1991. http://dx.doi.org/10.1117/12.44165.

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Toma, F. L., G. Bertrand, D. Klein, C. Coddet, and C. Meunier. "Photocatalytic Decomposition of Nitrogen Oxides Over TiO2 Coatings Elaborated by Liquid Feedstock Plasma Spraying." In ITSC2005, edited by E. Lugscheider. Verlag für Schweißen und verwandte Verfahren DVS-Verlag GmbH, 2005. http://dx.doi.org/10.31399/asm.cp.itsc2005p0476.

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Abstract In this paper, the modified method of plasma spraying using liquid suspension feedstock was used to elaborate thin titanium dioxide coatings. TiO2 Degussa P25 powder were dispersed by continuous stirring in distilled water and alcoholic solutions and injected in an Ar-H2 or Ar-H2-He plasma plume under atmospheric conditions. Scanning electron microscopy and X-ray diffraction were performed to study the microstructure and crystalline phases of titanium dioxide coatings. The anatase content in the elaborated TiO2 deposits strongly depended on the type of the suspension solvent. The phot

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Denton, Mark S., and Mercouri G. Kanatzidis. "Innovative Highly Selective Removal of Cesium and Strontium Utilizing a Newly Developed Class of Inorganic Ion Specific Media." In ASME 2009 12th International Conference on Environmental Remediation and Radioactive Waste Management. ASMEDC, 2009. http://dx.doi.org/10.1115/icem2009-16221.

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Highly selective removal of Cesium and Strontium is critical for waste treatment and environmental remediation. Cesium-137 is a beta-gamma emitter and Strontium-90 is a beta emitter with respective half-lives of 30 and 29 years. Both elements are present at many nuclear sites. Cesium and Strontium can be found in wastewaters at Washington State’s Hanford Site, as well as in wastestreams of many Magnox reactor sites. Cesium and Strontium are found in the Reactor Coolant System of light water reactors at nuclear power plants. Both elements are also found in spent nuclear fuel and in high-level w

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