對烯丙氧基苯甲酸膽固醇酯對聚合物分散液晶薄膜電—光性能的影響

曹暉; 王立波; 李克軒; 崔曉鵬; 黃維; 朱思泉; 楊槐

doi:10.13374/j.issn1001-053x.2009.01.020

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對烯丙氧基苯甲酸膽固醇酯對聚合物分散液晶薄膜電—光性能的影響

doi: 10.13374/j.issn1001-053x.2009.01.020

1. 北京科技大學材料科學與工程學院, 北京 100083;
2. 首都醫科大學附屬北京同仁醫院眼科中心, 北京 100730

基金項目:

北京市教育委員會共建項目建設計劃（No.SYS100080419）

詳細信息

作者簡介:
曹暉(1977-),男,講師,E-mail:caohui@mater.ustb.edu.cn;楊槐(1965-),男,教授,博士生導師

中圖分類號: TN104.3
計量
- 文章訪問數: 127
- HTML全文瀏覽量: 29
- PDF下載量: 5
- 被引次數: 0
出版歷程
- 收稿日期: 2008-08-01
- 網絡出版日期: 2021-08-09

Effect of p-allyloxycholesterolbenzoate on the electro-optical properties of polymer dispersed liquid crystal films

1. School of Materials Science and Engineering, University of Science and Technology Beijing, Beijing 100083, China;
2. Beijing Tongren Eye Center, Beijing Institute of Ophthalmology, Capital University of Medical Science, Beijing 100730, China

摘要

摘要: 選用對烯丙氧基苯甲酸膽固醇酯(ACB)/甲基丙烯酸β-羥乙酯(HEMA)/液晶(LC)/光引發劑(IRG-651)/玻璃微珠(SP-220)復合體系,在紫外光照射下制備了聚合物分散液晶(PDLC)薄膜.結果表明:雖然ACB沒有參與聚合,但卻明顯地提高了PDLC薄膜的對比度.在紫外光(365.0 nm)輻照度為15.0 mW·cm^-2、照射溫度為303.2 K、照射時間為10.0 min的條件下,ACB/HEMA/LC/IRG-651/SP-220的比例(質量分數)為6.2%/18.5%/74.0%/0.3%/1.0%時,所制備的PDLC薄膜具有高對比度和較佳的電-光性能.
- 聚合物分散液晶 /
- 對烯丙氧基苯甲酸膽固醇酯 /
- 聚合物網絡 /
- 電光性能
Abstract: Polymer dispersed liquid crystal (PDLC) films were prepared from photo-polymerization of a p-allyloxycholesterolbenzoate (ACB)/2-hydroxyethyl methacrylate (HEMA)/liquid crystal (LC)/photoinitiator (IRG-651)/glass spacer (SP-220) mixture by ultraviolet (UV) irradiation. It was found that the contrast ratio of PDLC films was remarkable increased with the addition of ACB although ACB did not participate in polymerization. Under the condition that the UV irradiance (365.0 nm) was 15.0 mW· cm_-2, the curing temperature was 303.2 K, and the UV irradiation time was 10.0 min. When the mass fractions of ACB/HEMA/LC/IRG-651/SP-220 were 6.2%/18.5%/74.0%/0.3%/1.0%, the PDLC films with high contrast ratio and better electro-optical properties were obtained.
- polymer dispersed liquid crystal /
- p-allyloxycholesterolbenzoate /
- polymer network /
- electro-optical properties