光敏聚合物薄膜光化学性能及其诱导液晶分子取向性能的研究

doi:10.7517/j.issn.1674-0475.2017.01.053

影像科学与光化学 ›› 2017, Vol. 35 ›› Issue (1): 53-60.DOI: 10.7517/j.issn.1674-0475.2017.01.053

光敏聚合物薄膜光化学性能及其诱导液晶分子取向性能的研究

曹进, 吴倜, 张伟民, 王占文, 张孝良, 蒲嘉陵

北京印刷学院, 北京 102600

收稿日期:2016-11-22 出版日期:2017-01-15 发布日期:2017-01-15
通讯作者: 张伟民
基金资助:
国家自然科学青年基金项目（21302012）、北京市教委面上项目（KM201410015002）和“北印英才”人才项目（09000114/080）资助

Study on The Photochemical Properties of Photosensitive Polymer Films and The Induced Orientation of Liquid Crystal Molecules

CAO Jin, WU Ti, ZHANG Weimin, WANG Zhanwen, ZHANG Xiaoliang, PU Jialing

Beijing Institute of Graphic Communication, Beijing 102600, P. R. China

Received:2016-11-22 Online:2017-01-15 Published:2017-01-15

摘要/Abstract

摘要：

本文采用动态紫外光谱法测试了含有香豆素光敏基团的聚合物薄膜的光化学性能，考察了不同曝光温度和曝光能量条件下的光敏聚合物的光化学性能，以及不同热处理条件下聚合物薄膜诱导液晶分子取向性能。研究结果表明：在曝光温度为130℃时，聚合物薄膜在最小曝光量下发生光化学反应后产生的光学各向异性ΔA达到最大，并且对应光反应程度DP在45%左右；当曝光能量为320 mJ/cm²和384 mJ/cm²、对应热处理温度为160℃时，聚合物薄膜诱导液晶分子取向所产生的各向异性ΔA和有序度参数S达到最大，分别为0.22和0.048。

关键词: 液晶, 热处理, 光化学反应, 各向异性

Abstract:

In this article, an ultraviolet spectrum method was used to measure the photoreaction property of polymer film containing coumarin photosensitive group. The photochemical reaction property of the film corresponding to the different exposure temperature and the different exposure energy were investigated. The orientation performance of liquid crystal induced by the film at different annealing conditions was also conducted. The results indicate that when the exposure temperature is 130℃, the value of anisotropy ΔA of the polymer film gets to the maximum and the corresponding exposure energy is the minimum. At the same time, the degree of photoreaction is about 45%. When the exposure energy achieve 320 mJ/cm² and 384 mJ/cm², and the annealing temperature is 160℃,the induced value of anisotropy ΔA and order parameter S is 0.22 and 0.048, respectively.

Key words: liquid crystal, annealing, photoreaction, anisotropy

曹进, 吴倜, 张伟民, 王占文, 张孝良, 蒲嘉陵. 光敏聚合物薄膜光化学性能及其诱导液晶分子取向性能的研究[J]. 影像科学与光化学, 2017, 35(1): 53-60.

CAO Jin, WU Ti, ZHANG Weimin, WANG Zhanwen, ZHANG Xiaoliang, PU Jialing. Study on The Photochemical Properties of Photosensitive Polymer Films and The Induced Orientation of Liquid Crystal Molecules[J]. Imaging Science and Photochemistry, 2017, 35(1): 53-60.

参考文献

[1] 周期凤,王新久. 液晶高分子[M]. 北京:科学出版社, 1994. 1-116.Zhou Q F, Wang X J. Polymer Liquid Crystal[M]. Beijing:Science Press, 1994. 1-116.
[2] Kunihiro Ichimura. Photoalignment of liquid-crystal systems[J]. Chemical Reviews, 2000,100(5):1847-1874.
[3] 李巍,高志强,密保秀.液晶取向技术[J]. 南京邮电大学学报, 2009,4:90-96.Li Wei, Gao Z Q, Mi B X. Progress in the liquid crystal alignment[J]. Journal of Nanjing University of Posts and Telecommunication, 2009,4:90-96.
[4] 马颖,张方辉,盛锋. 液晶显示器摩擦取向技术的新发展[J].液晶与显示,2003,18(4):279-285.Ma Y, Zhang F H, Sheng F. Progress of research on rubbing alignment techniques for LCD[J]. Journal of Liquid Crystals and Displays, 2003,18(4):279-285.
[5] Schadt M,Schmitt K,Kozinkov V,Chigrinov V. Surface-induced parallel alignment of liquid crystals by linearly polymerized photopolymers[J]. Japanese Journal of Applied Physics, 1992,31(7):2155-2164.
[6] Chigrinov V G, Kozenkov V M, Kwok H. Photoalignment of Liquid Crystalline Materials. Physics and Applications[M]. Wiley, 2008.
[7] Angiolini L. Smart light-responsive materials. azobenzene-containing polymers and liquid crystals[J]. Macromolecular Chemistry and Physics, 2010,211(4):481.
[8] Nobuhiro K, Hitomi M, Mizuho K, Tomoyuki S, Hiroshi O. Photoinduced reorientation and polarization holography in a new photopolymer with 4-methoxy-N-benzylideneaniline side groups[J]. Applied Matter, 2013,1(2):2477-2481.
[9] 纪小妹,焦阳,魏杰. 液晶光定向材料研究进展[J].信息记录材料,2008,9:33-41.Ji X M, Jiao Yang, Wei Jie. Development of researchon LC light control materials[J]. Information Recording Material, 2008,9:33-41.
[10] Peter S, Isabel M, Saez. Side chain liquid crystal polyacrylate and polymethacrylate nickel complexesfree from covalent cross-linking[J]. Molecular Crystals and Liquid Crystals, 2004,411(1):491-502.
[11] Schadt M, Seiberle H, Schuster A. Optical patterning of multidomain liquid-crystal displays with wide viewing angles[J]. Nature, 1996,381:212-215.
[12] Kawatsuki N, Matsuyoshi K, Hayashi M, Takatsuka H, Yamamoto T. Photoreaction of photo-cross-linkable methacrylate polymer films comprising 2-cinnamoyloxyethoxybiphenyl side group by linearly polarized ultraviolet light and liquid crystal alignment on the resultant films[J]. Chemistry of Materials, 2000,12(6):1549-1555.
[13] Obi M, Morino S, Ichimura K. Photocontrol of liquid crystal alignment by polymethacrylates with diphenylacetylene side chains[J]. Chemistry of Materials,1999,11(5):1293-1301.
[14] Obi M, Morino S, Ichimura K. The reversion of photoalignment direction of a liquid crystal induced by a polymethacrylate with coumarin side chains[J]. Macromolecular Rapid Communications, 1998,19(12):643-646.
[15] Jackson P O, Bergmann G, Hogg J H C, O'Neill M. Grazing incidence X-ray reflectivity of coumarin side-chain polymers used for liquid crystal photoalignment layers[J]. Synthetic Metals, 2002,127(s1-3):95-98.
[16] Jackson P O, O'Neill M. An investigation of the role of cross-linking and photodegradation of side-chain coumarin polymers in the photoalignment of liquid crystals[J]. Chemistry of Materials, 2001,13(2):694-703.
[17] 冯利邦,方红霞,周树学,顾广新,武利民. 一步法制备聚二甲基硅氧烷大分子偶氮引发剂及其用于嵌段共聚物的合成[J]. 高分子学报, 2007, (5):472-477.Feng L B, Fang H X, Zhou S X, Gu G X, Wu L M. Synthesis of PDMS-containing macroazoinitiator by one step method and its application in preparation of block copolymers[J]. Acta Polymerica Sinica, 2007, (5):472-477.
[18] Michael P, Ringsdorf H, Zentel R. Synthesis and phase behaviour of liquid crystalline polyacrylates[J]. Die Makromolekulare Chemie, Macromolecular Symposia,1982,183(10):2311-2321.
[19] Macdonald R, Schulz R, Schreiber C. Polarization-induced orientational order and surface relief gratings in liquid crystalline polymers containing photosensitive azochromophores[J]. Proceedings of SPIE, 1999, 3800.
[20] Hiroshi S, Kouki T, Mizuho K, Nobuhiro K. Photoinduced cooperative orientation and pattern formation in copolymer films with 4-methoyazobenzene and benzoic acid side groups[J]. Molecular Crystals and Liquid Crystals, 2012,563(1):131-138.
[21] Nobuhiro K, Masaki H, Tohei Y. Alignment of photo-crosslinkable copolymer liquid crystals induced by linearly polarized ultraviolet light irradiation and annealing:effect of heating rate[J]. Macromolecular Chemistry and Physics, 2001,202:3087-3098.

光敏聚合物薄膜光化学性能及其诱导液晶分子取向性能的研究

Study on The Photochemical Properties of Photosensitive Polymer Films and The Induced Orientation of Liquid Crystal Molecules

PDF (PC)

可视化

摘要/Abstract

引用本文

使用本文

参考文献

相关文章 15

编辑推荐

Metrics

本文评价

[1]	张洲洋, 孔翔飞, 戴胜平, 张来齐, 王桂霞. 含炔基类盘状液晶分子的研究进展[J]. 影像科学与光化学, 2017, 35(6): 868-883.
[2]	李超, 周前雄, 张宝文, 王雪松. 微流光反应技术制备树脂状维生素D₃[J]. 影像科学与光化学, 2017, 35(5): 667-674.
[3]	华鑫, 包春燕, 林秋宁, 朱麟勇. 光控水凝胶的构筑及在生物医药领域的应用[J]. 影像科学与光化学, 2017, 35(4): 379-395.
[4]	王秀凤, 杨东, 刘鸣华. 超分子凝胶中的光化学反应[J]. 影像科学与光化学, 2015, 33(1): 49-66.
[5]	曹进, 张伟民, 杨姣, 蒲嘉陵. 曝光量对含香豆素基团的液晶共聚高分子的光控取向性能的影响[J]. 影像科学与光化学, 2013, 31(6): 456-462.
[6]	张天宝, 李金培. 制备条件对铝掺杂氧化锌(AZO)薄膜结构和电学性质的影响[J]. 影像科学与光化学, 2009, 27(6): 452-461.
[7]	周力, 吴骊珠, 张丽萍, 佟振合. 苯基三羰基合锰(Ⅰ)配合物的光化学反应[J]. 影像科学与光化学, 2006, 24(6): 401-403.
[8]	李建庄, 赵修建, 夏冬林. 热处理对电沉积制备CuInGaSe₂薄膜的影响[J]. 影像科学与光化学, 2005, 23(4): 241-246.
[9]	朱杰芳, 傅文, 何斌, 张金龙. 溶胶-凝胶及水热法制备掺杂铁、铬离子的二氧化钛光催化剂[J]. 影像科学与光化学, 2004, 22(4): 241-243.
[10]	纪顺俊, 吴林, 胡丽华. 环酮及其衍生物的光化学反应研究进展[J]. 影像科学与光化学, 2002, 20(6): 449-461.
[11]	苏育志, 梁兆熙. 光致变色液晶聚合物的光致再取向性能研究进展[J]. 影像科学与光化学, 2002, 20(4): 292-302.
[12]	吴一天, 梁文平, 吴世康. 微乳状液中的光化学反应[J]. 影像科学与光化学, 1999, 17(2): 177-183.
[13]	房喻. 时间分辨(荧光)各向异性及其在高分子科学研究中的应用[J]. 影像科学与光化学, 1998, 16(3): 274-288.
[14]	佟振合, 王红炜. SELECTIVE PHOTOOXIDATION OF trans,trans-1,4-DIPHENYL-1,3-DIBUTADIENE IN ZEOLITE ZSM-5[J]. 影像科学与光化学, 1997, 15(4): 289-292.
[15]	王文科, 魏杰, 黄毓礼. 激光诱导荧光衰减探测光化学反应[J]. 影像科学与光化学, 1997, 15(4): 351-356.