Ellipsometric study of the liquid/liquid interface in a phase-separated colloid-polymer suspension

被引：36

作者：

de Hoog, EHA

Lekkerkerker, HNW

Schulz, J

Findenegg, GH

机构：

[1] Univ Utrecht, Vant Hoff Lab Phys & Colloid Chem, NL-3584 CH Utrecht, Netherlands

[2] Tech Univ Berlin, Iwan N Stranski Inst Phys & Theoret Chem, D-10623 Berlin, Germany

来源：

JOURNAL OF PHYSICAL CHEMISTRY B | 1999年 / 103卷 / 48期

关键词：

D O I：

10.1021/jp9921607

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

An investigation of the interface in a phase-separated colloid-polymer suspension with ellipsometry is presented. The coefficient of ellipticity at the Brewster angle of light reflected at the interface between the coexisting colloid-rich and polymer-rich phase was measured along two trajectories through the phase diagram. Interpreting the data in terms of a diffuse interface model, an interfacial thickness in the order of the diameter of the colloidal particles is found.

引用

页码：10657 / 10660

页数：4

共 17 条

[1] ON INTERACTION BETWEEN 2 BODIES IMMERSED IN A SOLUTION OF MACROMOLECULES
ASAKURA, S
OOSAWA, F
[J]. JOURNAL OF CHEMICAL PHYSICS, 1954, 22 (07) : 1255 - 1256
[2] Azzam R., 1977, ELLIPSOMETRY POLARIZ
[3] SHORT-RANGED ROUGHNESS ON THE NEAR-CRITICAL LIQUID INTERFACE
BEAGLEHOLE, D
[J]. PHYSICA B & C, 1982, 112 (03): : 320 - 330
[4] Indirect determination of the composition of the coexisting phases in a demixed colloid polymer mixture
Bodnar, I
Oosterbaan, WD
[J]. JOURNAL OF CHEMICAL PHYSICS, 1997, 106 (18) : 7777 - 7780
[5] REVERSIBLE FLOCCULATION OF STERICALLY-STABILIZED DISPERSIONS
COWELL, C
LIINON, R
VINCENT, B
[J]. JOURNAL OF THE CHEMICAL SOCIETY-FARADAY TRANSACTIONS I, 1978, 74 : 337 - 347
[6] Measurement of the interfacial tension of a phase-separated colloid-polymer suspension
de Hoog, EHA
Lekkerkerker, HNW
[J]. JOURNAL OF PHYSICAL CHEMISTRY B, 1999, 103 (25): : 5274 - 5279
[7] Drude P., 1959, THEORY OPTICS
[8] POLYMER-INDUCED PHASE SEPARATIONS IN NON-AQUEOUS COLLOIDAL SUSPENSIONS
GAST, AP
HALL, CK
RUSSEL, WB
[J]. JOURNAL OF COLLOID AND INTERFACE SCIENCE, 1983, 96 (01) : 251 - 267
[9] PHASE-BEHAVIOR OF A MODEL COLLOID-POLYMER MIXTURE
ILETT, SM
ORROCK, A
POON, WCK
PUSEY, PN
[J]. PHYSICAL REVIEW E, 1995, 51 (02): : 1344 - 1352
[10] PHASE-BEHAVIOR OF COLLOID PLUS POLYMER MIXTURES
LEKKERKERKER, HNW
POON, WCK
PUSEY, PN
STROOBANTS, A
WARREN, PB
[J]. EUROPHYSICS LETTERS, 1992, 20 (06): : 559 - 564

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