Monomolecular film

Japanese: monomolecular film(英語表記)monomolecularfilm
Monomolecular film

…When the concentration of fatty acid salt per surface area is low enough, the fatty acid salt molecules move freely around the surface, but when the concentration is high, they line up tightly on the surface (water-air interface). A layer of about the diameter of a molecule that molecules form on the surface (or interface) of a liquid or solid in this way is called a monolayer, single molecular layer, or monomolecular film. Molecules that form a monolayer often orient in a fixed direction, like fatty acid salts on the surface of water, and therefore exhibit unique properties. …

*Some of the terminology that mentions "monomolecular film" is listed below.

Source | Heibonsha World Encyclopedia 2nd Edition | Information

Japanese:

…表面積当りの脂肪酸塩濃度が十分に低いと,脂肪酸塩分子は表面を自由に動きまわるが,濃度が高くなると,表面(水‐空気界面)にぎっしりと並ぶ。このように分子が液体または固体の表面(あるいは界面)につくる分子の直径程度の層を単分子層,一分子層または単分子膜monomolecular filmという。単分子層をつくる分子は,水表面の脂肪酸塩のように,定まった方向に配向することが多いので,特有の性質を示す。…

※「monomolecular film」について言及している用語解説の一部を掲載しています。

出典|株式会社平凡社世界大百科事典 第2版について | 情報

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