【作者】 毕曙光； 彭海炎； 廖永贵； 解孝林； 杨亚江； Brycki Bogumil；

【Author】 Shu-Guang Bi~1,Hai-Yan Peng~1,Yong-Gui Liao~2, Xiao-Lin Xie~(1,2*),Ya-Jiang Yang~(2*),Bogumil Brycki~3 1.National Anti-counterfeit Engineering Research Center,Huazhong University of Science and Technology,Wuhan 430074; 2.School of Chemistry and Chemical Engineering,Huazhong University of Science and Technology,Wuhan 430074; 3.Department of Chemistry,Adam Mickiewicz University,Poznan,Poland

【机构】 华中科技大学国家防伪工程技术研究中心； 华中科技大学化学与化工学院； 波兹南密茨凯维奇大学化学系；

【摘要】 <正>聚合物分散液晶(PDLC)在显示器件、信息储器、防伪等领域应用广泛,但液晶在聚合物载体中的相分离程度大大影响了其电光特性,因此如何提高液晶在聚合物中的响应速度是目前面临的重大挑战之一。双子表面活性剂(Gemini surfactant)是更多还原

【Abstract】 PVA dispersed liquid crystals（4-pentyl-4′-cyanobiphenyl,5CB） were prepared with 0.023%gemini surfactant（N,N’-didodecyl-N,N,N’,N’,N"- pentamethyl-1,4, 7-triazaheptane diiodide,DPTD） as dispersant,and their microstructure and phase behavior were investigated.Polarizing microscope photographs show that PDLC films have significant birefringence phenomenon and the liquid crystal droplets are dispersed uniformly which diameter are about 2μm measured by atomic force microscopy.DSC analysis shows that the liquid crystalline-isotropic transition temperature(T_N-I) and the glass transition temperature（T_g） of PDLC films do not significantly change.更多还原