聚合物分散液晶(PDLC)的形貌对其电光性能有着极其重要的影响,通过控制固化条件实现对PDLC形貌的调控有着重要的实用价值.采用可逆加成-断裂链转移自由基(RAFT)聚合法制备了PDLC,研究了低玻璃化转变温度的大分子RAFT试剂聚丙烯酸丁酯(RAFT-PBA)含量和固化时间对PDLC形貌及关态透光率的影响.结果表明,随着固化时间的延长,PDLC关态透光率降低,最后趋于不变.液晶微滴尺寸随RAFT-PBA含量增加而逐渐增大,当其含量为15%时,PDLC的关态透光率最低.
参考文献
| [1] | Higgins D A.Probing the mesoscopic chemical and physical properties of polymer-dispersed liquid crystals[J].Advanced Materials,2000,12(4):251-264. |
| [2] | 曹须,刘文菊,王杰,等.PDLC 制备过程中聚合物和液晶的选择[J].液晶与显示,2006,21(5):414-417. |
| [3] | Mucha M.Polymer as an important component of blends and composites with liquid crystals[J].Progress in Polymer Science,2003,28(5):837-873. |
| [4] | Doane J W,Vaz N A,Wu B G,et al.Field controlled light scattering from nematic microdroplets[J].Appl.Phys.Lett.,1986,48(2):269-271. |
| [5] | 王丽萍,杨海莲,王立波,等.羟基和交联剂对PDLC 膜电-光性能的影响[J].液晶与显示,2006,21(5):439-443. |
| [6] | Vaz N A,Smith G W,Montgomery G P.A light control film composed of liquid crystal droplets dispersed in a UV-curable polymer[J].Molecular Crystals and Liquid Crystals,1987,146(1):1-15. |
| [7] | 王平华,张斌,唐龙祥,等.可逆加成-断裂链转移活性自由基聚合[J].高分子材料与工程,2006,22(5):110:116. |
| [8] | Vaia R A,Tomlin D W,Schulte M D,et al.Two-phase nanoscale morphology of polymer/LC composites[J].Polymer,2001,42(3):1055-1065. |
| [9] | 阎斌,王守廉,何杰,等.聚合物结构对PDLC性能的影响[J].液晶与显示,2007,22(2):44-47. |
| [10] | 潘懿,张红东,杨玉良,等.紫外光固化PDLC膜的形态及电光性能[J].高等学校化学学报,1994,15(6):920-924. |
| [11] | 王晓安,何杰,阎斌,等.聚合物网络液晶电光性能的研究[J].液晶与显示,2007,22(4):372-377. |
| [12] | He J,Yan B,Yu B,et al.The effect of molecular weight of polymer matrix on properties of polymer dispersed liquid crystals[J].European Polymer Journal,2007,43(6):2745-2749. |
| [13] | Yan B,He J,Bao R,et al.Modification of electro-optical properties of polymer dispersed liquid crystals by iniferter polymerization[J].European Polymer Journal,2008,44(3):952-958. |
| [14] | Bouteiller L.Polymer-dispersed liquid crystals:Preparation,operation and application[J].Liquid Crystals,1996,21(2):157-174. |
上一张
下一张
上一张
下一张
计量
- 下载量()
- 访问量()
文章评分
- 您的评分：
-
10%
-
20%
-
30%
-
40%
-
50%