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首页> 外文期刊>The journal of physical chemistry, B. Condensed matter, materials, surfaces, interfaces & biophysical >Atomistic Simulation Study of Linear Alkylbenzene Sulfonates at the Water/Air Interface
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Atomistic Simulation Study of Linear Alkylbenzene Sulfonates at the Water/Air Interface

机译:水/空气界面线性烷基苯磺酸盐的原子模拟研究

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摘要

Molecular dynamics simulations with the CHARMM atomistic force field have been used to study.monolayers of a series of linear alkylbenzene sulfonates (LAS) at the water/air interface. Both the numbers of carbon atoms in the LAS alkyl tail (1 to 11) and the position of attachment of the benzene ring on the alkyl chain have been varied. Totally 36 LAS homologues and isomers have been investigated. The surface tensions of the systems and the average tilt angles of the LAS molecules are found to be related to both the length and the degree of branching of the alkyl tails, whereas the solubility and mobility are mostly determined by the tail length.
机译:使用CHARMM原子力场的分子动力学模拟研究了水/空气界面处一系列直链烷基苯磺酸盐(LAS)的单分子层。 LAS烷基尾部(1至11)中的碳原子数和烷基链上苯环的连接位置均发生了变化。总共研究了36种LAS的同系物和异构体。发现系统的表面张力和LAS分子的平均倾斜角与烷基尾巴的长度和支化度有关,而溶解度和迁移率主要由尾巴的长度决定。

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