VAPOR-LIQUID CONDENSATION IN CHARGED COLLOIDAL SUSPENSIONS

被引：141
|
作者：
TATA, BVR
RAJALAKSHMI, M
ARORA, AK
机构：
[1] Materials Science Division, Indira Gandhi Centre for Atomic Research
来源：
PHYSICAL REVIEW LETTERS | 1992年 / 69卷 / 26期
关键词：
D O I：
10.1103/PhysRevLett.69.3778
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
Dilute aqueous polystyrene suspensions are found to exhibit a novel vapor-liquid condensation. Upon de-ionization, weakly interacting homogeneous suspensions below a critical particle concentration condense into a concentrated phase with liquidlike order and a dilute vapor phase. This phenomenon strongly suggests net attraction between particles at interparticle separation several times the particle diameter. The present results are understood on the basis of an effective interparticle model potential.
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页码：3778 / 3781
页数：4
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