EFFECT OF SHEAR ON THE DESORPTION OF OLIGOMERS IN NANOSCOPICALLY CONFINED FILMS

被引：31

作者：

MANIAS, E ^{[1
]}

HADZIIOANNOU, G ^{[1
]}

TENBRINKE, G ^{[1
]}

机构：

[1] UNIV GRONINGEN, CTR MAT SCI, DEPT CHEM, 9747 AG GRONINGEN, NETHERLANDS

来源：

JOURNAL OF CHEMICAL PHYSICS | 1994年 / 101卷 / 02期

关键词：

D O I：

10.1063/1.467794

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Bitsanis et al. J. Chem. Phys. 99, 5520 (1993) found that in nanoscopically confined films between strongly physisorbing surfaces chains with many contacts with the walls are irreversibly adsorbed. When shear is imposed to these systems molecular dynamics (MD) simulations show that the majority of the adsorbed oligomers adopts flat conformations on top of the walls. Although these conformations are characterized by high molecular adsorption energies, the same MD simulations show that desorption is strongly promoted by shear. The underlying mechanism is discussed.

引用

页码：1721 / 1724

页数：4

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