Studies on Electro-Optical Properties of Polymer Matrix/LC/SiO2 Nanoparticles Composites

被引:30
作者
Li, Wenbo [1 ]
Zhu, Mengjun [1 ]
Ding, Xiaokang [1 ]
Li, Bofu [1 ]
Huang, Wei [1 ]
Cao, Hui [1 ]
Yang, Zhou [1 ]
Yang, Huai [1 ]
机构
[1] Univ Sci & Technol Beijing, Sch Mat Sci & Engn, Dept Mat Phys & Chem, Beijing 100083, Peoples R China
关键词
liquid crystal; SiO2; nanoparticles; light scattering; optics; photopolymerization; LIQUID-CRYSTAL DISPLAY; OPTICAL-PROPERTIES; LIGHT-SCATTERING; CHIRAL DOPANT; DROPLETS;
D O I
10.1002/app.28874
中图分类号
O63 [高分子化学(高聚物)];
学科分类号
070305 ; 080501 ; 081704 ;
摘要
Polymer-dispersed liquid crystal (PDLC) films were prepared by ultraviolet light-induced polymerization of photopolymerizable monomers in nematic liquid crystal (L C)/monomers/SiO2, nanoparticles composites, and the effect of SiO2 nanoparticles on the electro-optical properties of PDLC films was studied. The observed effect showed that by the adjustment of the SiO2 nanoparticles content, the refractive index ratio of the LC and polymer could be modulated, and the electro-optical properties of the polymer matrix/LC/SiO2 nanoparticles composites could be optimized. (c) 2008 Wiley Periodicals, Inc. J Appl Polym Sci 111: 1449-1453, 2009
引用
收藏
页码:1449 / 1453
页数:5
相关论文
共 24 条
[1]   Surface-induced orientational order in stretched nanoscale-sized polymer dispersed liquid-crystal droplets [J].
Amimori, I ;
Eakin, JN ;
Qi, J ;
Skacej, G ;
Zumer, S ;
Crawford, GP .
PHYSICAL REVIEW E, 2005, 71 (03)
[2]   Thermophysical, dielectric, and electro-optic properties of nematic liquid crystal droplets confined to a thermoplastic polymer matrix [J].
Boussoualem, M ;
Roussel, F ;
Ismaili, M .
PHYSICAL REVIEW E, 2004, 69 (03) :031702-1
[3]  
CHUIKO AA, 1992, CHEM SILICA SURFACE, P247
[4]   Electro-optics of suspensions of monodispersed inorganic nanoparticles in liquid crystals [J].
Dolgov, L ;
Yaroshchuk, O .
MOLECULAR CRYSTALS AND LIQUID CRYSTALS, 2004, 409 :77-89
[5]   Electrooptic properties of liquid crystals filled with silica nanoparticles of different sorts [J].
Dolgov, LO ;
Yaroshchuk, OV .
COLLOID AND POLYMER SCIENCE, 2004, 282 (12) :1403-1408
[6]   STATIC SCATTERING IN FILLED NEMATIC - NEW LIQUID-CRYSTAL DISPLAY TECHNIQUE [J].
EIDENSCHINK, R ;
DEJEU, WH .
ELECTRONICS LETTERS, 1991, 27 (13) :1195-1196
[7]  
EIDENSCHINK R, 1998, Patent No. 5729320
[8]   FOUNDATION AND APPLICATION OF SILICIC-ACID GAINED THROUGH FLAME HYDROLYSIS .25. ADSORPTION AT THE SURFACE OF FUMED SILICA [J].
ETTLINGER, M ;
FERCH, H ;
MATHIAS, J .
ARCHIV DER PHARMAZIE, 1987, 320 (01) :1-15
[9]   Memory effect in filled nematic liquid crystals [J].
Glushchenko, A ;
Kresse, H ;
Reshetnyak, V ;
Reznikov, Y ;
Yaroshchuk, O .
LIQUID CRYSTALS, 1997, 23 (02) :241-246
[10]   Ordering of droplets and light scattering in polymer dispersed liquid crystal films [J].
Kiselev, AD ;
Yaroshchuk, OV ;
Dolgov, L .
JOURNAL OF PHYSICS-CONDENSED MATTER, 2004, 16 (41) :7183-7197