Use of amphiphilic amide compounds in Z-type Langmuir-Blodgett films
申请人:YEDA RESEARCH AND DEVELOPMENT COMPANY LIMITED
公开号:EP0255718A2
公开(公告)日:1988-02-10
Described are novel amphiphilic amide compounds which are suited for the production of multilayer films which have piezoelectric and pyroelectric properties, and which provide second harmonic generation.It is possible to prepare from these compounds polar single-layer and multi-layer films by depositing them on a substrate. When such substrate is a solid support, polar Z-type Langmuir-Blodgett films are obtained. Upon compression of films of such compounds, at an air/water interface, stable Langmuir monolayers are formed.
描述的新型两性酰胺化合物适用于生产多层薄膜,这些薄膜具有压电和热释电特性,并能产生二次谐波。 将这些化合物沉积在基底上,可以制备极性单层和多层薄膜。 当基底为固体支撑物时,可获得极性 Z 型朗缪尔-布洛杰特薄膜。 在空气/水界面上压缩这些化合物的薄膜时,可形成稳定的朗缪尔单层。
US5047535A
申请人:——
公开号:US5047535A
公开(公告)日:1991-09-10
A new series of amphiphilic molecules forming stable Z-type (polar) Langmuir-Blodgett films
作者:R. Popovitz-Biro、K. Hill、E. Shavit、D. J. Hung、Meir Lahav、L. Leiserowitz、J. Sagiv、H. Hsiung、G. R. Meredith、H. Vanherzeele
DOI:10.1021/ja00163a005
日期:1990.3
A new series of amphiphilic molecules bearing two amide groups along the hydrocarbon chain form head-to-tail Z-type (polar) multilayers by the Langmuir-Blodgett (LB) technique, in contrast with the common amphiphiles that tend to deposit in the head-to-head, tail-to-tail Y-type fashion. Molecules with one amide group along the chain form Y-type or Z-type structures, depending on the location of the
一系列新的两亲分子在烃链上带有两个酰胺基团,通过 Langmuir-Blodgett (LB) 技术形成头对尾的 Z 型(极性)多层膜,这与倾向于沉积在头部的常见两亲分子形成对比-到头,尾到尾的Y型时尚。沿链具有一个酰胺基团的分子形成 Y 型或 Z 型结构,具体取决于酰胺沿链的位置。对硝基苯胺或部花青基团可以在极性意义上排列,通过将它们共价连接到此类两亲物,以产生显示二次谐波产生 (SHG) 的多层膜。这些薄膜通过椭偏仪、X 射线衍射、IR、UV 和 SHG 测量进行表征。Z 型沉积与观察到的薄膜的低水接触角相关,