Synthesis and guest-host interaction of liquid crystal like materials

被引:9
作者
Bagheri, M
Entezami, A [1 ]
Ghanadzadeh, A
机构
[1] Tabriz Univ, Fac Chem, Polymer Chem Lab, Tabriz, Iran
[2] Gilan Univ, Dept Chem, Phys Chem Lab, Rasht, Iran
关键词
liquid crystals; nonlinear materials; guest-host interaction; dichroic ratio;
D O I
10.1016/S0167-7322(01)00272-0
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
The Schiff base of 4-(6-hydroxyhexyloxy)-N-(5-nitro-2-thienylmethylene)aniline (H6Th), in which a nitrothienyl group as acceptor and an oxyphenyl group as donor was synthesized by condensation method. The methacrylate monomer 4-(6-methacryloyloxy hexyloxy)-N-(5-nitro-2-thienylmethylene)aniline (M6Th) was synthesized and polymerized using a free radical initiator to produce polymer (P6Th) useful for guest-host interaction. Dichroic ratio R and order parameter S of solutions of the nonlinear materials H6Th, M6Th, and P6Th in the nematic solvent, were investigated by the measuring of the intensity of the absorption bands in the visible region of parallel aligned samples. The effect of the solvent nature on the visible absorption of the guest materials were studied.
引用
收藏
页码:249 / 259
页数:11
相关论文
共 16 条
[1]  
AGUIRRESACONA IU, 1989, J CHEM EDUC, V66, P866
[2]   STUDY OF ORIENTATION AND ORDER OF NONMESOGENIC SOLUTES IN LIQUID-CRYSTALLINE MATRIX BY INFRARED-SPECTROSCOPY [J].
CHINGDUANG, P ;
BUALEK, S ;
PHAOVIBUL, O ;
SCHRADER, B .
MOLECULAR CRYSTALS AND LIQUID CRYSTALS, 1986, 132 (1-2) :131-141
[3]   LIGHT-SCATTERING AND DIELECTRIC STUDIES OF MOLECULAR ASSOCIATION IN MESOGENIC SOLUTIONS [J].
DUNMUR, DA ;
TORIYAMA, K .
LIQUID CRYSTALS, 1986, 1 (02) :169-180
[4]  
GHANADZADEH A, 2000, IN PRESS J MOL LIQ, V88, P307
[5]  
GHANADZADEH A, IN PRESS SPECTROCH A
[6]   ON THE AGGREGATIVE PROPERTIES OF RHODAMINE 6G IN ETHANOLIC SOLUTIONS [J].
GHOMASHCHI, E ;
GHANADZADEH, A ;
MAHJANI, MG ;
HASANPOUR, M ;
NIAVARAN, HZ .
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY, 1991, 47 (02) :211-217
[7]   CRYSTAL-STRUCTURES OF 60CB AND 70CB [J].
HORI, K ;
KOMA, Y ;
UCHIDA, A ;
OHASHI, Y .
MOLECULAR CRYSTALS AND LIQUID CRYSTALS, 1993, 225 :15-22
[8]   UNUSUAL ORIENTATIONAL BEHAVIOR OF ANTHRAQUINONE DYES IN NEMATIC CYANOPHENYLCYCLOHEXANE DERIVATIVES [J].
IMAZEKI, S ;
MUKOH, A ;
TANAKA, N ;
KINOSHITA, M .
MOLECULAR CRYSTALS AND LIQUID CRYSTALS, 1993, 225 :197-210
[9]  
Ivashchenko A. V., 1987, Molecular Crystals and Liquid Crystals, V150A, P1
[10]   Oligothiophene dyes for guest-host liquid crystal displays [J].
Iwanaga, H ;
Naito, K ;
Effenberger, F .
LIQUID CRYSTALS, 2000, 27 (01) :115-123