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Relaxation Behavior of a Langmuir Monolayer of Octadecanol.
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- SAKAI Ken-ichi
- Department of Instrumentation Engineering, Faculty of Science and Technology. Keio University
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- KUWABARA Takeshi
- Department of Instrumentation Engineering, Faculty of Science and Technology. Keio University
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- IMAMURA Mamiko
- Department of Instrumentation Engineering, Faculty of Science and Technology. Keio University
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- OHTA Eiji
- Department of Instrumentation Engineering, Faculty of Science and Technology. Keio University
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- SATO Tetsuya
- Department of Instrumentation Engineering, Faculty of Science and Technology. Keio University
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- SAKATA Makoto
- School of Medicine, Kyorin University
Bibliographic Information
- Other Title
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- オクタデカノールＬ膜の緩和挙動
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Description
An octadecanol monolayer on water was investigated with regard to surface pressure relaxation and area creep at 283 K. Under surface pressure less than 20 mN/m, the relaxation and creep completed within a few ten minutes and the monolayer showed a homogeneous morphology. The monolayer under higher surface pressure continued to relax. FT-IR spectra of monolayer films indicated that an absorption band of the CH2 asymmetric stretching mode shifted to low energy with increasing the surface pressure. Molecules in the monolayers after pressure relaxation and area creep preferred to gauche-and trans-configuration, respectively. The compression and dilatation of the monolayer gave rise to a hysteresis curve in the surface pressure(II)-area(A) relationship and the dynamic viscosity measured by canal method was 2∼3×10-6 Pa. s. m. These could be related with the gauche-traps transformation. The collapses of the monolayer were found at high surface pressure. Homogeneous octadecanol monolayers could be formed after creep at about 20 mN/m.
Journal
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- Hyomen Kagaku
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Hyomen Kagaku 14 (5), 265-271, 1993
The Surface Science Society of Japan
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Details 詳細情報について
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- CRID
- 1390001206455060736
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- NII Article ID
- 130003683364
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- COI
- 1:CAS:528:DyaK2cXhtlelu7Y%3D
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- ISSN
- 18814743
- 03885321
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- Text Lang
- ja
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- Data Source
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- JaLC
- Crossref
- CiNii Articles
- OpenAIRE
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- Abstract License Flag
- Disallowed