Effect of fluorine groups and different terminal chains on the electro-isomerization of azobenzene liquid crystals

doi:10.1088/1674-1056/25/9/096401

中国物理B ›› 2016, Vol. 25 ›› Issue (9): 96401-096401.doi: 10.1088/1674-1056/25/9/096401

• SPECIAL TOPIC—Physical research in liquid crystal • 上一篇下一篇

Effect of fluorine groups and different terminal chains on the electro-isomerization of azobenzene liquid crystals

Jing-Jing Xiong(熊晶晶), Dong Shen(沈冬), Zhi-Gang Zheng(郑致刚), Xiao-Qian Wang(王骁乾)

Department of Physics, East China University of Science and Technology, Shanghai 200237, China

收稿日期:2016-05-17 出版日期:2016-09-05 发布日期:2016-09-05
通讯作者: Dong Shen E-mail:shen@ecust.edu.cn
基金资助:
Project supported by the National Natural Science Foundation of China (Grant Nos. 61435008 and 61575063).

Effect of fluorine groups and different terminal chains on the electro-isomerization of azobenzene liquid crystals

Jing-Jing Xiong(熊晶晶), Dong Shen(沈冬), Zhi-Gang Zheng(郑致刚), Xiao-Qian Wang(王骁乾)

Department of Physics, East China University of Science and Technology, Shanghai 200237, China

Received:2016-05-17 Online:2016-09-05 Published:2016-09-05
Contact: Dong Shen E-mail:shen@ecust.edu.cn
Supported by:
Project supported by the National Natural Science Foundation of China (Grant Nos. 61435008 and 61575063).

摘要/Abstract

摘要： A series of azobenzene liquid crystals with one or two terminal acrylate groups were synthesized and their polymers were fabricated. The azobenzene liquid crystals and their polymers achieved the photoisomerization from the liquid crystalline trans-isomer to the isotropic cis-isomer with UV irradiation. Then, the cis to trans isomerization induced by an electric field was studied, the time required for electro-isomerization was measured, the texture change and absorption variation from cis to trans form induced by the electric field were observed clearly, and the time required for electro-isomerization was much shorter than that for thermal relaxation. The influence of the polar group (fluorine), terminal acrylate group, and flexible alkyl chain on the time of electro-isomerization was studied. The results show that the compounds with polar fluorine group require shorter time for electro-isomerization and the polymerization of terminal acrylate group delays the electro-isomerization.

关键词: electro-isomerization, azobenzene liquid crystals, fluorine

Abstract: A series of azobenzene liquid crystals with one or two terminal acrylate groups were synthesized and their polymers were fabricated. The azobenzene liquid crystals and their polymers achieved the photoisomerization from the liquid crystalline trans-isomer to the isotropic cis-isomer with UV irradiation. Then, the cis to trans isomerization induced by an electric field was studied, the time required for electro-isomerization was measured, the texture change and absorption variation from cis to trans form induced by the electric field were observed clearly, and the time required for electro-isomerization was much shorter than that for thermal relaxation. The influence of the polar group (fluorine), terminal acrylate group, and flexible alkyl chain on the time of electro-isomerization was studied. The results show that the compounds with polar fluorine group require shorter time for electro-isomerization and the polymerization of terminal acrylate group delays the electro-isomerization.

Key words: electro-isomerization, azobenzene liquid crystals, fluorine

中图分类号: (Experimental studies of liquid crystal transitions)

64.70.mj

82.30.Qt (Isomerization and rearrangement)

熊晶晶, 沈冬, 郑致刚, 王骁乾. Effect of fluorine groups and different terminal chains on the electro-isomerization of azobenzene liquid crystals[J]. 中国物理B, 2016, 25(9): 96401-096401.

Jing-Jing Xiong(熊晶晶), Dong Shen(沈冬), Zhi-Gang Zheng(郑致刚), Xiao-Qian Wang(王骁乾). Effect of fluorine groups and different terminal chains on the electro-isomerization of azobenzene liquid crystals[J]. Chin. Phys. B, 2016, 25(9): 96401-096401.

参考文献 29

[1]	Beharry A A and Woolley G A 2011 Chem. Soc. Rev. 40 4422
[2]	Hartley G S 1937 Nature 140 281
[3]	Liu Z F, Hashimoto K and Fujishima A 1990 Nature 347 658
[4]	Murakami H, Kawabuchi A, Kotoo K, Kunitake M and Nakashima N 1997 J. Am. Chem. Soc. 119 7605
[5]	Ferri V, Elbing M, Pace G, Dicky M D, Zharnikov M, Samori P, Mayor M and Rampi A M 2008 Angew. Chem., Int. Ed. 47 3407
[6]	Wen Y Q, Yi W H, Meng L J, Feng M, Jiang G Y, Yuan W F, Zhang Y Q, Gao H J, Jiang L and Song Y L 2005 J. Phys. Chem. B 109 14465
[7]	Kakiage K, Yamamura M, Ido E, Kyomen T, Unno M and Hanaya M 2010 Appl. Organomet. Chem. 25 98
[8]	Liu J, Wang M L, Li Y Y and Luo H B 2011 Chin. J. Liq. Cryst. Disp. 26 577
[9]	Song J, Li H L, Liu Y G and Xuan L 2010 Chin. J. Liq. Cryst. Disp. 25 689
[10]	Zhou L, Zhang D, Zheng Z G, Shen D and Bao X F 2010 Chin. J. Liq. Cryst. Disp. 28 7
[11]	Willner I and Rubin S 1996 Angew. Chem. Int. Ed. Engl. 35 367
[12]	EI Halabieh R H, Mermut O and Barrett C J 2004 Pure Appl. Chem. 76 1445
[13]	De Sio L, Serak S, Tabiyan N, Ferjani S, Veltri A and Umeton C 2010 Adv. Mater. 22 2316
[14]	Tabiyan N, Hrozhyk U and Serak S 2004 Phys. Rev. Lett. 93 113901
[15]	Ikeda T, Horiuchi S, Karanjit D B, Kurihara S and Tazuke S 1990 Macromolecules 23 42
[16]	Hrozhyk U A, Serak S V, Tabiyan N V and Bunning T J 2007 Adv. Mater. 19 3244
[17]	Rau H and Lueddecke E 1982 J. Am. Chem. Soc. 104 1616
[18]	Chang C W, Lu Y C, Wang T T and Diau E W G 2004 J. Am. Chem. Soc. 126 10109
[19]	Blevins A A and Blanchard G J 2004 J. Phys. Chem. B 108 4962
[20]	Cattaneo P and Persico M 1999 Phys. Chem. Chem. Phys. 1 4739
[21]	Dokic J, Gothe M, Wirth J, Peters M V, Schwarz J, Hechtand S and Saalfrank P 2009 J. Phys. Chem. A 113 6763
[22]	Turansky R, Konopka M, Doltsinis N L, Stich I and Marx D 2010 Phys. Chem. Chem. Phys. 12 13922
[23]	Henzl J, Mehlhorn M, Gawronski H, Rieder K H and Morgenstern K 2006 Angew. Chem. Int. Ed. 45 603
[24]	Tong X, Pelletier M, Lasia A and Zhao Y 2008 Angew. Chem. Int. Ed. 47 3596
[25]	Browne W R and Feringa B L 2009 Annu. Rev. Phys. Chem. 60 407
[26]	Enomoto T, Hagiwara H, Tryk D A, Liu Z F, Hashimoto K and Fujishima A 1997 J. Phys. Chem. B 101 742
[27]	Alemani M, Peters M V, Hecht S, Rieder K H, Moresco F and Grill L 2006 J. Am. Chem. Soc. 128 14446
[28]	Liu Y C, Liu Y C and Fuh A Y G 2014 Opt. Express 22 21004
[29]	Liu Y C, Cheng K T, Chen H F and Fuh A Y G 2014 Opt. Express 22 4404

Effect of fluorine groups and different terminal chains on the electro-isomerization of azobenzene liquid crystals

Effect of fluorine groups and different terminal chains on the electro-isomerization of azobenzene liquid crystals

RichHTML

PDF (PC)

赞

可视化

摘要/Abstract

引用本文

使用本文

参考文献 29

相关文章 11

Metrics

本文评价

推荐阅读 0

[1]	Chen Wang(王尘), Wei-Hang Fan(范伟航), Yi-Hong Xu(许怡红), Yu-Chao Zhang(张宇超), Hui-Chen Fan(范慧晨), Cheng Li(李成), and Song-Yan Cheng(陈松岩). Phosphorus diffusion and activation in fluorine co-implanted germanium after excimer laser annealing[J]. 中国物理B, 2022, 31(9): 98503-098503.
[2]	Dongyan Zhao(赵东艳), Yubo Wang(王于波), Yanning Chen(陈燕宁), Jin Shao(邵瑾), Zhen Fu(付振), Fang Liu(刘芳), Yanrong Cao(曹艳荣), Faqiang Zhao(赵法强), Mingchen Zhong(钟明琛), Yasong Zhang(张亚松), Maodan Ma(马毛旦), Hanghang Lv(吕航航), Zhiheng Wang(王志恒), Ling Lv(吕玲), Xuefeng Zheng(郑雪峰), and Xiaohua Ma(马晓华). Fluorine-plasma treated AlGaN/GaN high electronic mobility transistors under off-state overdrive stress[J]. 中国物理B, 2022, 31(11): 117301-117301.
[3]	Ines Ben Amor, Lotfi Saadaoui, Abdulaziz N. Alharbi, Talal M. Althagafi, and Taoufik Soltani. Influences of nanoparticles and chain length on thermodynamic and electrical behavior of fluorine liquid crystals[J]. 中国物理B, 2022, 31(10): 104202-104202.
[4]	吕欠欠, 靳锡联, 崔田, 庄全, 李颖, 王友春, 包括, 孟醒. Crystal structures and electronic properties of solid fluorine under high pressure[J]. 中国物理B, 2017, 26(7): 76103-076103.
[5]	杨凌, 周小伟, 马晓华, 吕玲, 曹艳荣, 张进成, 郝跃. Low power fluorine plasma effects on electrical reliability of AlGaN/GaN high electron mobility transistor[J]. 中国物理B, 2017, 26(1): 17304-017304.
[6]	张鹏, 赵胜雷, 侯斌, 王冲, 郑雪峰, 马晓华, 张进成, 郝跃. Improvement of the off-state breakdown voltage with field plate and low-density drain in AlGaN/GaN high-electron mobility transistors[J]. 中国物理B, 2015, 24(3): 37304-037304.
[7]	全思, 郝跃, 马晓华, 于惠游. Influence of ⁶⁰Co gamma radiation on fluorine plasma treated enhancement-mode high- electron-mobility transistor[J]. 中国物理B, 2011, 20(5): 58501-058501.
[8]	马晓华, 于惠游, 全思, 杨丽媛, 潘才渊, 杨凌, 王昊, 张进成, 郝跃. Enhancement-mode AlGaN/GaN high electronic mobility transistors with thin barrier[J]. 中国物理B, 2011, 20(2): 27303-027303.
[9]	全思, 郝跃, 马晓华, 于惠游. Investigation of AlGaN/GaN fluorine plasma treatment enhancement-mode high electronic mobility transistors by frequency-dependent capacitance and conductance analysis[J]. 中国物理B, 2011, 20(1): 18101-018101.
[10]	马恒, Onnagawa Hiroyoshi, Sugimori Sigeru, Toriyama Kazuhisa. Correlation of magnetic anisotropy with dielectric anisotropy in fluorinated phenyl bicyclohexane liquid crystal[J]. 中国物理B, 2010, 19(7): 76104-076104.
[11]	马恒, 孙瑞芝, 李振新, 刘玉芳. Temperature dependence of ratio between dielectric anisotropy and order parameter in fluorinated nematic liquid crystals[J]. 中国物理B, 2008, 17(1): 255-258.