Studies on monolayers. 1. Surface tension and absorption spectroscopic measurements of monolayers of surface-active azo and stilbene dyes
作者:Juergen Heesemann
DOI:10.1021/ja00527a004
日期:1980.3
assemblies, a series of 9 surface-active azo and stilbene compounds are synthesized. Their monolayer properties at the air-water interface are studied by surface pressure-surface area measurements and spectroscopic techniques. The results show that small changes in the molecular structure of the surfactants (such as, length of the fatty acid chain and type of the chromphore) have an immense influence on the
为了开发新分子作为单层组件的功能组分,合成了一系列 9 种表面活性偶氮和二苯乙烯化合物。通过表面压力-表面积测量和光谱技术研究它们在空气-水界面的单层特性。结果表明,表面活性剂分子结构的微小变化(如脂肪酸链的长度和发色团的类型)对单层性质有巨大的影响。对于化合物 I 和 III-VIII 的单层,获得范德壁式等温线,其显示液体膨胀状态、相变区域和凝聚状态。从单层吸收光谱发现,在 100 到 110 平方埃/分子的液体膨胀状态下,发色团平躺在水面上,形成单体。等温线的相变区域可以归因于发色团轴方向的变化(水平到垂直)和发色团的聚集过程(单体到 H 聚集体)。20 参考。
Granata, Alessandro; Sauriol, Francoise; Perlin, Arthur S., Canadian Journal of Chemistry, 1994, vol. 72, # 7, p. 1684 - 1690
作者:Granata, Alessandro、Sauriol, Francoise、Perlin, Arthur S.