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,