PERCOLATION PHENOMENON ON FLUORINATED WATER-IN-OIL MICROEMULSIONS - THE EFFECT OF TEMPERATURE

被引:18
作者
GIRI, MG [1 ]
CARLA, M [1 ]
GAMBI, CMC [1 ]
SENATRA, D [1 ]
CHITTOFRATI, A [1 ]
SANGUINETI, A [1 ]
机构
[1] AUSIMONT,CTR R&D,COLLOID LAB,I-20021 BOLLATE,ITALY
来源
PHYSICAL REVIEW E | 1994年 / 50卷 / 02期
关键词
D O I
10.1103/PhysRevE.50.1313
中图分类号
O35 [流体力学]; O53 [等离子体物理学];
学科分类号
070204 ; 080103 ; 080704 ;
摘要
The static dielectric constant and the conductivity versus temperature were studied on a water in oil microemulsion composed of perfluoropolyether (PFPE) oil and surfactant at a constant water to surfactant ratio for different oil to surfactant ratios. The evidence of a percolation phenomenon is shown. An analysis in terms of scaling laws and a calculation of the scaling exponents indicate a dynamic percolation process below the threshold for all of the samples studied and above the threshold, far from phase transition regions. The exponents of static percolation are found above the threshold, close to the phase transition.
引用
收藏
页码:1313 / 1316
页数:4
相关论文
共 34 条
[21]  
LAGUES M, 1978, J PHYS LETT-PARIS, V39, pL487, DOI 10.1051/jphyslet:019780039024048700
[22]   PERFLUOROPOLYETHER WATER OIL MICROEMULSIONS - A H-1-NMR SELF-DIFFUSION STUDY OF WATER [J].
MONDUZZI, M ;
CHITTOFRATI, A ;
VISCA, M .
LANGMUIR, 1992, 8 (05) :1278-1284
[23]  
MONDUZZI M, IN PRESS J PHYS CHEM
[24]   QUANTITATIVE-DETERMINATION OF THE PERCOLATION-THRESHOLD IN WATERLESS MICROEMULSIONS [J].
PEYRELASSE, J ;
BONED, C ;
SAIDI, Z .
PHYSICAL REVIEW E, 1993, 47 (05) :3412-3417
[25]   DIELECTRIC-RELAXATION AND PERCOLATION PHENOMENA IN TERNARY MICROEMULSIONS [J].
PEYRELASSE, J ;
MOHAOUCHANE, M ;
BONED, C .
PHYSICAL REVIEW A, 1988, 38 (02) :904-917
[26]  
PEYRELASSE J, 1993, PHYS REV E, V47, P468
[27]   WATERLESS MICROEMULSIONS .2. USE OF FORMAMIDE IN PLACE OF WATER IN THE PREPARATION OF LARGE MONOPHASIC AREAS OF PERFLUORINATED MICROEMULSIONS [J].
RICO, I ;
LATTES, A .
JOURNAL OF COLLOID AND INTERFACE SCIENCE, 1984, 102 (01) :285-287
[28]  
RISTORI S, 1993, THESIS U FLORENCE
[29]   LIGHT-SCATTERING STUDY OF A PERFLUOROPOLYETHER TERNARY-SYSTEM [J].
SANGUINETI, A ;
CHITTOFRATI, A ;
LENTI, D ;
VISCA, M .
JOURNAL OF COLLOID AND INTERFACE SCIENCE, 1993, 155 (02) :402-408
[30]   PHYSICOCHEMICAL PROPERTIES OF AQUEOUS-SOLUTIONS OF FLUORINATED SURFACTANTS [J].
SHINODA, K ;
HATO, M ;
HAYASHI, T .
JOURNAL OF PHYSICAL CHEMISTRY, 1972, 76 (06) :909-&