X-RAY REFLECTIVITY STUDY OF AN OIL-WATER INTERFACE IN EQUILIBRIUM WITH A MIDDLE-PHASE MICROEMULSION

被引：52

作者：

MCCLAIN, BR

LEE, DD

CARVALHO, BL

MOCHRIE, SGJ

CHEN, SH

LITSTER, JD

机构：

[1] Center for Materials Science and Engineering, Massachusetts Institute of Technology, Cambridge

来源：

PHYSICAL REVIEW LETTERS | 1994年 / 72卷 / 02期

关键词：

D O I：

10.1103/PhysRevLett.72.246

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The roughness and surface correlations of a surfactant monolayer at an oil-water interface in equilibrium with a small amount of middle-phase microemulsion were studied using x-ray scattering. High energy x rays in conjunction with tight instrumental resolution allow us to separate and quantify the specular reflectivity and surface diffuse scattering of the interface. The experimental results are explained using a height-height correlation function derived from a capillary wave model. The interface was found to have an intrinsic roughness of 85 angstrom and an interfacial tension of 0.11 dyn/cm.

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页码：246 / 249

页数：4

相关论文

共 19 条

[1] CONCENTRATED WINSOR MICROEMULSIONS - A SMALL-ANGLE X-RAY-SCATTERING STUDY [J].

AUVRAY, L ;

COTTON, JP ;

OBER, R ;

TAUPIN, C .

JOURNAL DE PHYSIQUE, 1984, 45 (05) :913-928

[2] EVIDENCE FOR ZERO MEAN-CURVATURE MICROEMULSIONS [J].

AUVRAY, L ;

COTTON, JP ;

OBER, R ;

TAUPIN, C .

JOURNAL OF PHYSICAL CHEMISTRY, 1984, 88 (20) :4586-4589

[3] SURFACE-ROUGHNESS OF WATER MEASURED BY X-RAY REFLECTIVITY [J].

BRASLAU, A ;

DEUTSCH, M ;

PERSHAN, PS ;

WEISS, AH ;

ALSNIELSEN, J ;

BOHR, J .

PHYSICAL REVIEW LETTERS, 1985, 54 (02) :114-117

[4] CAPILLARY WAVES ON THE SURFACE OF SIMPLE LIQUIDS MEASURED BY X-RAY REFLECTIVITY [J].

BRASLAU, A ;

PERSHAN, PS ;

SWISLOW, G ;

OCKO, BM ;

ALSNIELSEN, J .

PHYSICAL REVIEW A, 1988, 38 (05) :2457-2470

[5] MICRO-EMULSIONS AND THE FLEXIBILITY OF OIL-WATER INTERFACES [J].

DEGENNES, PG ;

TAUPIN, C .

JOURNAL OF PHYSICAL CHEMISTRY, 1982, 86 (13) :2294-2304

[6] SMALL-ANGLE NEUTRON-SCATTERING EVIDENCE FOR A BICONTINUOUS STRUCTURE IN A MICROEMULSION CONTAINING EQUAL VOLUMES OF OIL AND WATER [J].

DEGEYER, A ;

TABONY, J .

CHEMICAL PHYSICS LETTERS, 1986, 124 (04) :357-360

[7] MICROSTRUCTURE OF MICROEMULSIONS BY FREEZE-FRACTURE ELECTRON-MICROSCOPY [J].

JAHN, W ;

STREY, R .

JOURNAL OF PHYSICAL CHEMISTRY, 1988, 92 (08) :2294-2301

[8] HOW TO STUDY MICROEMULSIONS [J].

KAHLWEIT, M ;

STREY, R ;

HAASE, D ;

KUNIEDA, H ;

SCHMELING, T ;

FAULHABER, B ;

BORKOVEC, M ;

EICKE, HF ;

BUSSE, G ;

EGGERS, F ;

FUNCK, T ;

RICHMANN, H ;

MAGID, L ;

SODERMAN, O ;

STILBS, P ;

WINKLER, J ;

DITTRICH, A ;

JAHN, W .

JOURNAL OF COLLOID AND INTERFACE SCIENCE, 1987, 118 (02) :436-453

[9] PHASE-BEHAVIOR OF TERNARY-SYSTEMS OF THE TYPE H2O-OIL-NONIONIC AMPHIPHILE (MICROEMULSIONS) [J].

KAHLWEIT, M ;

STREY, R .

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION IN ENGLISH, 1985, 24 (08) :654-668

[10] NEUTRON REFLECTIVITY OF AN OIL-WATER INTERFACE [J].

LEE, LT ;

LANGEVIN, D ;

FARNOUX, B .

PHYSICAL REVIEW LETTERS, 1991, 67 (19) :2678-2681