Flow-induced molecular orientation of a Langmuir film

被引：55

作者：

Maruyama, T ^{[1
]}

Fuller, G ^{[1
]}

Frank, C ^{[1
]}

Robertson, C ^{[1
]}

机构：

[1] STANFORD UNIV,DEPT CHEM ENGN,STANFORD,CA 94305

来源：

SCIENCE | 1996年 / 274卷 / 5285期

关键词：

D O I：

10.1126/science.274.5285.233

中图分类号：

O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];

学科分类号：

07 ; 0710 ; 09 ;

摘要：

The two-dimensional fluid dynamics of the different phases of a fatty acid monolayer (docosanoic acid) were examined. Brewster angle microscopy was used to investigate the polydomain structure of two ''liquid condensed'' phases (the L(2) and L'(2) phases) and the ''solid'' (S) phase in situ during an extensional flow. Only the L(2) phase deformed affinely with a liquid-like response, The two other phases experienced flow-induced reorientation of the lattice onto which the molecules were arranged, The reorientation process was accompanied by the appearance of shear bands in the monolayers at an angle of +/- 45 degrees to the extension axis of the flow.

引用

页码：233 / 235

页数：3

共 10 条

[1]

Edwards D., 1991, INTERFACIAL TRANSPOR

[2] CONTROLLING MOLECULAR ORDER IN HAIRY-ROD LANGMUIR-BLODGETT-FILMS - A POLARIZATION-MODULATION MICROSCOPY STUDY [J].