Hyperbolic Spirals as Surface Structures in Thin Layers
When thin layers of 4-chloro-3-methylphenol and a copolymer of methyl(methacrylate) and maleic acid dissolved in acetone are dried by solvent evaporation, various surface structures appear. Besides linear surface deformations that can ramify like fractals, spirals of the hyperbolic type have been fo...
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| Veröffentlicht in: | Journal of colloid and interface science 2001-03, Vol.235 (2), p.210-217 |
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| container_title | Journal of colloid and interface science |
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| creator | Weh, Lothar |
| description | When thin layers of 4-chloro-3-methylphenol and a copolymer of methyl(methacrylate) and maleic acid dissolved in acetone are dried by solvent evaporation, various surface structures appear. Besides linear surface deformations that can ramify like fractals, spirals of the hyperbolic type have been found. The surface structures are due to crystallization processes and flows caused by surface tension differences. The spirals are surface elevations with grooves on both sides as shown by surface profile measurements by means of a microscope interferometer. The addition of surfactants reduces the structure formation. A large surfactant concentration prevents the structure formation. |
| doi_str_mv | 10.1006/jcis.2000.7365 |
| format | Article |
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Besides linear surface deformations that can ramify like fractals, spirals of the hyperbolic type have been found. The surface structures are due to crystallization processes and flows caused by surface tension differences. The spirals are surface elevations with grooves on both sides as shown by surface profile measurements by means of a microscope interferometer. The addition of surfactants reduces the structure formation. A large surfactant concentration prevents the structure formation.</description><subject>Chemistry</subject><subject>Colloidal state and disperse state</subject><subject>crystallization</subject><subject>Exact sciences and technology</subject><subject>Gas-liquid interface and liquid-liquid interface</subject><subject>General and physical chemistry</subject><subject>Marangoni effect</subject><subject>Micelles. 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| ispartof | Journal of colloid and interface science, 2001-03, Vol.235 (2), p.210-217 |
| issn | 0021-9797 1095-7103 |
| language | eng |
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| subjects | Chemistry Colloidal state and disperse state crystallization Exact sciences and technology Gas-liquid interface and liquid-liquid interface General and physical chemistry Marangoni effect Micelles. Thin films spiral structures surface flow Surface physical chemistry surface tension |
| title | Hyperbolic Spirals as Surface Structures in Thin Layers |
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