MORPHOLOGY AND DIELECTRIC PROPERTIES OF POLYMER DISPERSED LIQUID CRYSTALS WITH MAGNETIC NANOPARTICLES

被引：0

作者：

Tomasovicova, Natalia ^{[1
]}

Mitroova, Zuzana ^{[1
]}

Kovalchuk, Oleksander ^{[2
,3
]}

Tomco, Ladislav ^{[4
]}

Gornitska, Olga ^{[3
]}

Bykov, Vladimir ^{[2
]}

Kovalchuk, Tatjana ^{[5
]}

Studenyak, Igor ^{[6
]}

Kopcansky, Peter ^{[1
]}

机构：

[1] Slovak Acad Sci, Inst Expt Phys, Watsonova 47, Kosice 04001, Slovakia

[2] Natl Acad Sci Ukraine, Inst Phys, UA-03028 Kiev, Ukraine

[3] Natl Aviat Univ, Inst Inovat Technol, UA-03058 Kiev, Ukraine

[4] Tech Univ, Fac Aeronaut, Kosice 04121, Slovakia

[5] Natl Acad Sci Ukraine, V Lashkaryov Inst Semicond Phys, UA-03028 Kiev, Ukraine

[6] Uzhgorod Natl Univ, UA-88000 Uzhgorod, Ukraine

来源：

NANOCON 2011 | 2011年

关键词：

magnetic nanoparticles; polymer matrix; liquid crystal; PDLC;

D O I：

暂无

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

Polymer dispersed liquid crystals (PDLCs) are currently considered as promising materials for specific applications such as creation of window blinds controlled by electric field, fog simulators, UV protective glasses, etc. The samples consisted of liquid crystal 6CHBT dispersed in polyvinyl alcohol and doped with spherical or rod-like magnetic particles showed significant changes in the effective value of the permittivity in the frequency range 0.1 Hz - 10(6) Hz. In this frequency range the conductivity of PDLC has two components: the ions in LC and the electrons in polymer. The presence magnetic particles in PDLC increases the ion component of the conductivity as well as the electron component of the conductivity.

引用

页码：559 / 564

页数：6

共 12 条

[1] Magnetically induced alignment of FNS
Buluy, O
Ouskova, E
Reznikov, Y
Glushchenko, A
West, J
Reshetnyak, V
[J]. JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS, 2002, 252 (1-3) : 159 - 161
[2] FIELD CONTROLLED LIGHT-SCATTERING FROM NEMATIC MICRODROPLETS
DOANE, JW
VAZ, NA
WU, BG
ZUMER, S
[J]. APPLIED PHYSICS LETTERS, 1986, 48 (04) : 269 - 271
[3] Fergason J. L., 1985, 1985 SID International Symposium. Digest of Technical Papers, P68
[4] The anchoring of nematic molecules on magnetic particles in some types of ferronematics
Kopcansky, P
Potocová, I
Koneracká, M
Timko, M
Jansen, AGM
Jadzyn, J
Czechowski, G
[J]. JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS, 2005, 289 : 101 - 104
[5] Study of magnetic Fredericksz transition in ferronematics. Liquid crystals doped with fine magnetic particles
Kopcansky, P
Koneracka, M
Zavisova, V
Jadzyn, J
Czechowski, G
Zywucki, B
[J]. JOURNAL DE PHYSIQUE IV, 1997, 7 (C1): : 565 - 566
[6] Structural changes in the 6CHBT liquid crystal doped with spherical, rodlike, and chainlike magnetic particles
Kopcansky, Peter
Tomasovicova, Natalia
Koneracka, Martina
Zavisova, Vlasta
Timko, Milan
Dzarova, Anezka
Sprincova, Adriana
Eber, Nandor
Fodor-Csorba, Katalin
Toth-Katona, Tibor
Vajda, Aniko
Jadzyn, Jan
[J]. PHYSICAL REVIEW E, 2008, 78 (01):
[7] Koval'chuk A. V., 1989, ZARUB ELETRONIKA, P44
[8] Generation of charge carriers and formation of antisymmetric double electric layers in glycerine
Koval'chuk, AV
[J]. JOURNAL OF CHEMICAL PHYSICS, 1998, 108 (19) : 8190 - 8194
[9] Relaxation processes and charge transport across liquid crystal-electrode interface
Koval'chuk, AV
[J]. JOURNAL OF PHYSICS-CONDENSED MATTER, 2001, 13 (46) : 10333 - 10345
[10] Kovalchuck A. V., 1996, Ukrayins'kyi Fizychnyi Zhurnal, V41, P991

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