LIQUID CRYSTAL DISPLAY DEVICE HAVING RETARDATION FILM FORMED OF LIQUID CRYSTALLINE POLYIMIDE HAVING PHOTOREACTIVE GROUP
申请人:Saigusa Kazuhiko
公开号:US20120113338A1
公开(公告)日:2012-05-10
In a liquid crystal display device having a plurality of retardation films for alleviating a deterioration in display quality depending on a viewing angle direction, and a driving liquid crystal layer selected from the group consisting of a driving liquid crystal layer typified by a VA mode wherein a liquid crystal molecule in a driving liquid crystal medium is aligned perpendicular to a substrate when no electric field is applied, a driving liquid crystal layer typified by an IPS mode wherein a liquid crystal molecule in a driving liquid crystal medium is aligned parallel to the substrate when no electric field is applied, and a driving liquid crystal layer that shows optical isotropy when no voltage is applied, a retardation film of a positive A-plate formed of a liquid crystalline polyimide having a photoreactive group is used as at least one layer of the plurality of retardation films.
LIQUID CRYSTAL POLYMERIZED FILMS USING ALIGNMENT FILM AND POLYMERIZABLE LIQUID CRYSTAL COMPOSTION
申请人:JNC CORPORATION
公开号:US20180163135A1
公开(公告)日:2018-06-14
Liquid crystal polymerization films, prepared by applying a polymerizable liquid crystal composition containing a polymerizable liquid crystal compound represented by formula (2) on an alignment film prepared by calcinating a composition containing a polymer represented by a repeating unit of formula (1), and subsequently polymerizing the polymerizable liquid crystal composition.
In formula (1), R
1
is independently a tetravalent group, R
2
is independently a divalent functional group and R
3
is independently a hydrogen atom or a monovalent functional group.
PG
1
-Sp
1
-R
4
-Sp
2
-PG
2
(2)
In formula (2), R
4
represents a divalent group formed by combining five or more and nine or less of alicycles and/or aromatic rings, SP
1
and SP
2
represent a spacer group, and PG
1
and PG
2
represents an alkyl group, an alkoxyl group, a cyano group, fluorine or a polymerizable functional group, in which either group is the polymerizable functional group.
US8730435B2
申请人:——
公开号:US8730435B2
公开(公告)日:2014-05-20
Secondary Face-to-Face 2-2′ β-Cyclodextrin Dimers Linked with Fluorescent Rigid Spacer Arms: A Cyclodextrin-Based Ratiometric Sensor for Bile Salts
作者:Manuel C. Martos-Maldonado、Indalecio Quesada-Soriano、Juan M. Casas-Solvas、Luis García-Fuentes、Antonio Vargas-Berenguel
DOI:10.1002/ejoc.201101598
日期:2012.5
The synthesis of a series of β-cyclodextrin (CD) dimers in which the two macrocycle units are linked by rigid-rod phenylene-ethynylene tethers of different length and shape through the cyclodextrin secondary sides is reported. The synthesis involves Sonogashira coupling reactions for construction of the tethers and final grafting of the CD units by click chemistry. The self-aggregation of the synthesized
报道了一系列β-环糊精(CD)二聚体的合成,其中两个大环单元通过不同长度和形状的刚性杆亚苯基-亚乙炔系链通过环糊精次级侧连接。该合成涉及用于构建系链和通过点击化学最终接枝 CD 单元的 Sonogashira 偶联反应。通过荧光光谱、等温滴定量热法和动态光散射研究了合成的 CD 二聚体在水性介质中的自聚集。刚性杆系绳环糊精二聚体在水溶液中形成 240 至 480 nm 的多分散纳米粒子,具体取决于系绳的形状,并显示出荧光。研究了CD二聚体对胆酸钠和脱氧胆酸钠的结合和荧光传感能力。因此,新合成的刚性杆系链环糊精二聚体被证明是非常灵敏的荧光化学传感器。因此,开发了一种新的基于环糊精的比率荧光探针,用于检测胆酸钠和脱氧胆酸钠等胆汁盐。