Study effected Graphene Oxide (GO) on dielectric and conductivity in binary system Liquid Crystals.
DOI:
https://doi.org/10.23851/mjs.v29i4.401Keywords:
Keyword, Liquid Crystals, Graphene Oxide, Dielectric constant, conductivity, nanoparticle.Abstract
Abstract: prepared of compound (A) 4.4ʹ-bis-[4-methayl benzyliden]-phenylendiamine-(1,4). and (B) 4.4ʹ-bis-[4-bromo benzyliden]- phenylendiamine-(1,4). Then a binary system D was created with concentration (0-100%) and found less eutectic point at concentration (60%). This was taken concentration from binary system pure D and measurements of a microscopy polarized and permittivity and conductivity. After taking a mixture pure and has been doping by graphene oxide (GO) too the same measurements observed the increase remarkable properties of graphene oxide (GO) in LC mixtures dispersions.References
References
E. Ouskove, O. Buchnev, V. Reshetnyak, and YU. Reznikov'' Dielectric relaxation spectroscopy of a nematic liquid Crystal doped with feeolelectric Sn2P2S6 nanoparticles'' Halle-Wittenberg, Germany. physChem, muhlpforte. 2003, 30, p1235
P.G.de Gennes, J .''Prot in the physiclo of liquid crystals'' Oxford University press, Oxford (1993).
L. Schmidt-Ment, A. Fechtenkotter, and K. Mullen. Mackenzeie, Science. 2001, 293, p1119-1122.
V. V. Titov, E. I. Kovshev, and A.I. Pavluchnko'' Synthesis and properties of nematic liquid crystal exhibiting a positive Dielectric anisotropy'' Journal de physique , Moscow, U.S.S.R.1975, 1, p387.
I. Dierking , G . Scalia, p Morales, D . LeClrer, ''Aligning and reorienting carbon nanotubes by nematic liquid crystal''// Ads . Mater., 2004, 16(11) , p865-869.
I. Dierking , G. Scalia, P Morales ''liquid crystal- carbon nanotube disions''. J. APPL. phys. 2005, 97(4), p44309
W.Lee, C -Yu. Wang , and Yu-c Shih,'' E ffects of carbon nanotubes on the electro -optical properties of a twisted nematic liquid -crystal host''. ApplphysLett . 2004, 85(4), p513-515.
A. Koval, chuk, L. Dolgov, O. Yaroshchuk''Dielectric studies of dispersions of carbon nanotubes in liquid crystal5CB''Inst for physics, NAS of Ukraine .physpacs.2008, 11(4), p337-338.
A. JAVED1, M. AKRAM2, and, M. I .SHAFIQ''Dielectric properties of cholesterol derivatives''. University of the Punjab.Rom. Journ. Phys. 2006, 51(7-8), p819–826.
W. S. Hummers ,and R. E. Offeman , J. Am. Chem. Soc. 1958 , 80, p1339.
M. Zainya, , N.M. Huanga, , S.VijayKumar, H.N.Lim , C.H.Chia ,and I.Harrison . Materials Letters.2012, 89, p180–183.
P. Sungjin, A. Jinho, JR. Potts, Velamakanni A, MuraliS,and RS. Ruoff''Hydrazine-reduction ofgraphite and graphene oxide ",E.Carbon 2011,49, p3019-3023,
C .Nethravathi, M. Rajamathi, N. Ravishankar, L .Basit, and C. Felser"Synthesis of graphene oxide-intercalated a-hydroxides by metathesis and their decomposition to graphene/metal oxide composites", Elsevier, Carbon,2010,48(15), p4343-4350.
SwamyArêa Maruyama, Fabio da Silva Lisboa, Luiz Pereira Ramos e Fernando Wypych*PR – Brasil Quim. Nova,.2012, 35(8), p1510-1516.
Schniepp, H. C, J. L. Li, M. J. McAllister, H .Sai,.; Herrera-Alonso, M.; D. H .Adamson, R. K Prud'Homme, R .Car,.; D. A .Saville, I. A . Aksay. "Functionalized Single Graphene Sheets Derived from Splitting Graphite Oxide". The Journal of Physical Chemistry 2006), 110(17), p8535–8539.
D Pandey, R. Reifenberger, R. Piner,. (. "Scanning probe microscopy study of exfoliated oxidized graphene sheets".Surface Science 2008, 602 (9), p1607.
L. J. Martı´nez-Miranda, K. McCarthy, L. K. Kurihara, J. J. Harry and A. Noel, Appl. Phys. Lett. 2006, 89, p161917 .
L. J. Martı´nez-Miranda, K. Mccarthy, L. K. Kurihara, and A. Noel, Mol. Liq. Cryst. 2005, 435, p747.
L. J. Martı´nez-Miranda and L. K. Kurihara, J. Appl. Phys. 2009, p105
R. L. Humphries and G. R. Luckhurst, “A statistical theory of liquid crystalline mixtures Components of different size”, Chem. Phys. Lett. 1973, 23(4), p567-570.
G. P. Johri and M. Goldstein, “Viscous Liquids and the Glass Transition. III. Secondary Relaxations in Aliphatic Alcohols and Other Nonrigid Molecules”, J. Chem. Phys. 1971, 55(9) p4245.
A.V. Koval'chuk, ''Low frequency spectroscopy as investigation method of the electrode-liquid interface'' Functional Materials. 1998, 5(3), p 428-430.
Downloads
Published
How to Cite
Issue
Section
License
Articles accepted for publication in Al-Mustansiriyah Journal of Science (MJS) are protected under the Creative Commons Attribution 4.0 International License (CC-BY-NC). Authors of accepted articles are requested to sign a copyright release form prior to their article being published. All authors must agree to the submission, sign copyright release forms, and agree to be included in any correspondence between MJS and the authors before submitting a work to MJS. For personal or educational use, permission is given without charge to print or create digital copies of all or portions of a MJS article. However, copies must not be produced or distributed for monetary gain. It is necessary to respect the copyright of any parts of this work that are not owned by MJS.
