LONG-RANGE ATTRACTIVE FORCE BETWEEN HYDROPHOBIC SURFACES OBSERVED BY ATOMIC-FORCE MICROSCOPY

被引:201
|
作者
TSAO, YH [1 ]
EVANS, DF [1 ]
WENNERSTROM, H [1 ]
机构
[1] LUND UNIV,CTR CHEM,DIV PHYS CHEM,S-22100 LUND,SWEDEN
关键词
D O I
10.1126/science.8211182
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
There is evidence from atomic force microscopy for a long-range attractive force between hydrophobic surfaces that is virtually identical to that observed with the surface forces apparatus. This force is present in the nonaqueous solvent ethylene glycol. A possible molecular mechanism involves in-plane polarized domains of solid-like monolayers adsorbed on mica, and a theoretical model has been developed that accounts for many of the observations.
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收藏
页码:547 / 550
页数:4
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