Novel concept for the aggregation structure of monolayers on the water surface
Novel concept for the aggregation structure of monolayers on the water surface
复制标题
水面单层聚集结构的新概念
DOI：
10.1021/la00032a012
复制
发表时间：
1993
期刊：
影响因子：
3.9
通讯作者：
Y. Takashima
中科院分区：
文献类型：
--
作者：
T. Kajiyama;Y. Oishi;Motoko Uchida;Y. Takashima
用透射电子显微镜研究了花生四烯酸单分子膜在不同PHS水相上的聚集结构。在亲水基团高度解离的情况下，通过表面压缩，花生四酸单分子膜表现出从非晶态到晶态的相变，而在轻微解离的情况下，花生四酸单分子膜没有表现出相变。根据温度和化学(分子间排斥力)因素，将单分子膜在水面上的聚集结构系统地分为“结晶单分子层”、“非晶态单分子层”和“压缩结晶单分子层”。
The aggregation structure of arachidic acid monolayers on water subphases of different pHs was investigated by means of transmission electron microscopy. Arachidic acid monolayers exhibited the phase transition from an amorphous state to a crystalline one by surface compression in the case of a highly dissociated state of hydrophilic groups, whereas they did not show the phase transition in the case of a slightly dissociated state. The aggregation structure of monolayers on the water surface was systematically classified into “the crystalline monolayer”,“the amorphous monolayer”, and “the compressing crystallized monolayer” with respect to thermal and chemical (intermolecular repulsive) factors.