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| Content Provider | Royal Society of Chemistry (RSC) |
|---|---|
| Author | Sogabe, Yoshimi Tanaka, Shinpei Nakata, Satoshi Satoh, Yusuke Kayahara, Katsuhiko Nagayama, Masaharu |
| Copyright Year | 2017 |
| Abstract | Self-motion of an oil droplet was investigated on a sodium dodecyl sulfate (SDS) aqueous phase. With an increase in the concentration of SDS, the nature of self-motion of a butyl salicylate (BS) droplet as the oil droplet was changed, i.e., no motion, reciprocation with a small amplitude, and reciprocation with a large amplitude, which was a value close to the half-length of the chamber. The interfacial tension, contact angle, and convective flow around the droplet were measured to clarify the driving force of reciprocation. The mechanisms of two types of reciprocation and mode-change were discussed in terms of the adsorption of SDS molecules at the BS/water interface and the dissolution of a mixture of BS and SDS into the bulk phase, the convective flow, and the Young's equation. The features of reciprocation and mode-change depending on the concentration of SDS were qualitatively reproduced by numerical calculation based on an equation of motion and the kinetics of SDS and BS at the air/aqueous interface. |
| Starting Page | 3422 |
| Ending Page | 3430 |
| Page Count | 9 |
| File Format | HTM / HTML PDF |
| ISSN | 1744683X |
| Volume Number | 13 |
| Issue Number | 18 |
| Journal | Soft Matter |
| DOI | 10.1039/c7sm00252a |
| Language | English |
| Publisher | Royal Society of Chemistry |
| Access Restriction | Open |
| Subject Keyword | Sodium dodecyl sulfate SDS Adsorption Butyl group Surface tension Contact angle The Features |
| Content Type | Text |
| Resource Type | Article |
| Subject | Chemistry Condensed Matter Physics |
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