1ST MEASUREMENT OF THE LIQUID-SOLID LINE ENERGY IN A LANGMUIR MONOLAYER

被引：72

作者：

MULLER, P

GALLET, F

机构：

[1] Laboratoire de Physique Statistique de Ecole Normale Supérieure, 75231 Paris Cedex 05

来源：

PHYSICAL REVIEW LETTERS | 1991年 / 67卷 / 09期

关键词：

D O I：

10.1103/PhysRevLett.67.1106

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We observe the homogeneous 2D nucleation of solid anisotropic domains from a liquid phase in an amphiphilic nitrobenzoxadiazole stearic acid monolayer. The nucleation rate decreases exponentially with the inverse of the excess surface pressure. We measure the line energy lambda-between the two phases. Its value, averaged over the contour of a seed, is (5 +/- 0.5) x 10(-7) erg/cm at 20-degrees-C. It decreases with temperature and when stearic acid impurities are added to the monolayer. We also discuss the anisotropy of lambda in the frame of a model based on dipolar electric interactions between molecules.

引用

收藏

页码：1106 / 1109

页数：4

相关论文

共 15 条

[1] PHASE-TRANSITIONS IN LANGMUIR MONOLAYERS OF POLAR-MOLECULES [J].

ANDELMAN, D ;

BROCHARD, F ;

JOANNY, JF .

JOURNAL OF CHEMICAL PHYSICS, 1987, 86 (06) :3673-3681

[2] COEXISTENCE OF AN ORDERED ANISOTROPIC PHASE AND A LIQUID EXPANDED PHASE IN AN AMPHIPHILIC MONOLAYER [J].

BERCEGOL, H ;

GALLET, F ;

LANGEVIN, D ;

MEUNIER, J .

JOURNAL DE PHYSIQUE, 1989, 50 (16) :2277-2289

[3] FACETED CRYSTAL-GROWTH IN 2 DIMENSIONS [J].

BERGE, B ;

FAUCHEUX, L ;

SCHWAB, K ;

LIBCHABER, A .

NATURE, 1991, 350 (6316) :322-324

[4]

CHAMBAUD G, COMMUNICATION

[5]

DIMITROV CS, 1978, J COLLOID INTERF SCI, V65, P483

[6]

LOSCHE M, 1984, REV SCI INSTRUM, V55, P1968, DOI 10.1063/1.1137688

[7] ELECTROSTATIC INTERACTIONS IN PHOSPHOLIPID-MEMBRANES .2. INFLUENCE OF DIVALENT IONS ON MONOLAYER STRUCTURE [J].

LOSCHE, M ;

MOHWALD, H .

JOURNAL OF COLLOID AND INTERFACE SCIENCE, 1989, 131 (01) :56-67

[8] SHAPES OF FINITE TWO-DIMENSIONAL LIPID DOMAINS [J].

MCCONNELL, HM ;

MOY, VT .

JOURNAL OF PHYSICAL CHEMISTRY, 1988, 92 (15) :4520-4525

[9] DIFFUSION LIMITED GROWTH OF CRYSTALLINE DOMAINS IN PHOSPHOLIPID MONOLAYERS [J].

MILLER, A ;

MOHWALD, H .

JOURNAL OF CHEMICAL PHYSICS, 1987, 86 (07) :4258-4265

[10] PHASE-DIAGRAM OF LANGMUIR MONOLAYERS OF PENTADECANOIC ACID - QUANTITATIVE COMPARISON OF SURFACE PRESSURE AND FLUORESCENCE MICROSCOPY RESULTS [J].

MOORE, BG ;

KNOBLER, CM ;

AKAMATSU, S ;

RONDELEZ, F .

JOURNAL OF PHYSICAL CHEMISTRY, 1990, 94 (11) :4588-4595