Molecular-scale structures of Langmuir-Blodgett films of fatty acids observed by atomic force microscopy (II) - cation dependence

被引：12

作者：

Sigiyama, N ^{[1
]}

Shimizu, A ^{[1
]}

Nakamura, M ^{[1
]}

Nakagawa, Y ^{[1
]}

Nagasawa, Y ^{[1
]}

Ishida, H ^{[1
]}

机构：

[1] Toray Res Ctr Inc, Otsu, Shiga 520, Japan

来源：

THIN SOLID FILMS | 1998年 / 331卷 / 1-2期

关键词：

Langmuir-Blodgett film; atomic force microscopy; ionic radius; pH; molecular arrangement; superstructure;

D O I：

10.1016/S0040-6090(98)00915-8

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The morphologies of LB films of arachidic acid and its salt were observed by atomic force microscopy (AFM) to reveal their cation dependence from the viewpoint of ionic radius and solution pH. The salt films having divalent metal ions (Ba2+, Sr2+ and Co2+) except for Mn2+ showed similar characteristic snipe-shaped macroscopic structures. An area per molecule in the film increased with decrease of ionic radius. Concerning the solution pn, significant changes in molecular arrangements and macroscopic structures were observed in the barium arachidate films. Coexistence of 2 x 2 superstructures with 1 x 1 fundamental structures were observed at pH = 8.0. but 3 x 1 at pH = 9.8. These structures were considered to depend on the increase of the salt funning ratio increases with pH. (C) 1998 Published by Elsevier Science Ltd. All rights reserved.

引用

页码：170 / 175

页数：6

共 16 条

[1] Morphology of microphase separation in arachidic acid/cadmium arachidate Langmuir-Blodgett multilayers [J].

Kurnaz, ML ;

Schwartz, DK .

JOURNAL OF PHYSICAL CHEMISTRY, 1996, 100 (26) :11113-11119

[2] Skeletonization as a probe of interlayer correlations in Langmuir-Blodgett films [J].

Kurnaz, ML ;

Schwartz, DK .

LANGMUIR, 1996, 12 (20) :4971-4975

[3] SCANNING TUNNELING MICROSCOPY OF LANGMUIR-BLODGETT FILMS ON GRAPHITE [J].

LANG, CA ;

HORBER, JKH ;

HANSCH, TW ;

HECKL, WM ;

MOHWALD, H .

JOURNAL OF VACUUM SCIENCE & TECHNOLOGY A-VACUUM SURFACES AND FILMS, 1988, 6 (02) :368-370

[4] MOLECULAR-RESOLUTION IMAGES OF LANGMUIR-BLODGETT-FILMS USING ATOMIC FORCE MICROSCOPY [J].

MEYER, E ;

HOWALD, L ;

OVERNEY, RM ;

HEINZELMANN, H ;

FROMMER, J ;

GUNTHERODT, HJ ;

WAGNER, T ;

SCHIER, H ;

ROTH, S .

NATURE, 1991, 349 (6308) :398-400

[5] OBSERVATION OF LANGMUIR-BLODGETT FILMS BY SCANNING TUNNELING MICROSCOPY [J].

MIZUTANI, W ;

SHIGENO, M ;

SAITO, K ;

WATANABE, K ;

SUGI, M ;

ONO, M ;

KAJIMURA, K .

JAPANESE JOURNAL OF APPLIED PHYSICS PART 1-REGULAR PAPERS SHORT NOTES & REVIEW PAPERS, 1988, 27 (10) :1803-1807

[6] MOLECULAR-SCALE STRUCTURES OF LANGMUIR-BLODGETT-FILMS OF FATTY-ACIDS OBSERVED BY ATOMIC-FORCE MICROSCOPY [J].

NAKAGAWA, Y ;

SHIMIZU, A ;

SUGIYAMA, N ;

SOEDA, F ;

ISHITANI, A .

JAPANESE JOURNAL OF APPLIED PHYSICS PART 1-REGULAR PAPERS SHORT NOTES & REVIEW PAPERS, 1995, 34 (7B) :3898-3902

[7]

NAKAGAWA Y, 1992, 39 SPRING M JAP SOC

[8] NEUTRON-ACTIVATION ANALYSIS OF METAL-IONS IN LANGMUIR-BLODGETT MULTILAYERS OF ARACHIDIC ACID [J].

PETROV, JG ;

KULEFF, I ;

PLATIKANOV, D .

JOURNAL OF COLLOID AND INTERFACE SCIENCE, 1982, 88 (01) :29-35

[9]

ROBERTS GG, 1990, LANGMUIR BLODGETT FI, pCH1

[10] SURFACE-MORPHOLOGY AND STABILITY OF LANGMUIR-BLODGETT MONOLAYERS AND MULTILAYERS OF SATURATED FATTY-ACIDS BY SCANNING FORCE MICROSCOPY [J].

SCHAPER, A ;

WOLTHAUS, L ;

MOBIUS, D ;

JOVIN, TM .

LANGMUIR, 1993, 9 (08) :2178-2184

← 1 2 →