Asymmetrical Azobenzene Liquid Crystals with High Birefringence Prepared via Click Chemistry

被引：3

作者：

Miao, Zongcheng ^{[1
]}

Zhang, Yongming ^{[1
]}

Zhao, Yuzhen ^{[2
]}

Wang, Zhixue ^{[1
]}

Wang, Dong ^{[2
]}

机构：

[1] Xijing Univ, Dept Fdn, Xian, Shaanxi Provinc, Peoples R China

[2] Univ Sci & Technol Beijing, Sch Mat Sci & Engn, Dept Mat Phys & Chem, Beijing 100083, Peoples R China

来源：

MOLECULAR CRYSTALS AND LIQUID CRYSTALS | 2014年 / 591卷 / 01期

关键词：

Azobenzene; click chemistry; liquid crystal; birefringence; selective reflection; REFLECTION; POLYMERS; MONOMERS;

D O I：

10.1080/15421406.2013.827842

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Asymmetrical azobenzene liquid crystals with high birefringence were prepared via the click chemistry method. The chemical structures of the synthetic intermediates and compounds were confirmed by FT-IR and( 1)H-NMR. The liquid crystal behavior, including transition temperatures and phase sequences, were investigated by DSC and POM. The effect of the alkyl substituents on liquid crystal behavior is discussed in detail. Then, the birefringence values of the liquid crystals were measured using polarizing light interferometry method. Moreover, the characteristics of selective reflection, which was associated with the value of birefringence, were studied.

引用

页码：10 / 18

页数：9

共 32 条

[1] Azobenzene Photoswitching without Ultraviolet Light
Beharry, Andrew A.
Sadovski, Oleg
Woolley, G. Andrew
[J]. JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2011, 133 (49) : 19684 - 19687
[2] Molecular Order in a Chromonic Liquid Crystal: A Molecular Simulation Study of the Anionic Azo Dye Sunset Yellow
Chami, Fatima
Wilson, Mark R.
[J]. JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2010, 132 (22) : 7794 - 7802
[3] Demus D., 1978, Textures of liquid crystals
[4] Optical and Physical Applications of Photocontrollable Materials: Azobenzene-Containing and Liquid Crystalline Polymers
Emoto, Akira
Uchida, Emi
Fukuda, Takashi
[J]. POLYMERS, 2012, 4 (01) : 150 - 186
[5] Photo-Reversible Liquid Crystal Alignment using Azobenzene-Based Self-Assembled Monolayers: Comparison of the Bare Monolayer and Liquid Crystal Reorientation Dynamics
Fang, Guanjiu
Shi, Yue
Maclennan, Joseph E.
Clark, Noel A.
Farrow, Matthew J.
Walba, David M.
[J]. LANGMUIR, 2010, 26 (22) : 17482 - 17488
[6] ORGANIC MATERIALS FOR REVERSIBLE OPTICAL-DATA STORAGE
FERINGA, BL
JAGER, WF
DELANGE, B
[J]. TETRAHEDRON, 1993, 49 (37) : 8267 - 8310
[7] Synthesis of molecular brushes by "grafting onto" method: Combination of ATRP and click reactions
Gao, Haifeng
Matyjaszewski, Krzysztof
[J]. JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2007, 129 (20) : 6633 - 6639
[8] Broadband reflection in polymer stabilized cholesteric liquid crystal cells with chiral monomers derived from cholesterol
Guo, Jinbao
Sun, Jie
Zhang, Lipei
Li, Kexuan
Cao, Hui
Yang, Huai
Zhu, Siquan
[J]. POLYMERS FOR ADVANCED TECHNOLOGIES, 2008, 19 (11) : 1504 - 1512
[9] Huisgen R., 1963, ANGEW CHEM INT EDIT, V2, P633, DOI DOI 10.1002/ANIE.196306331
[10] Huisgen R., 1963, Angew. Chem. Int. Ed, V2, P565, DOI [10.1002/anie.196305651, DOI 10.1002/ANIE.196305651]

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