Micelle form and stability |
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Authors: | G Taddei |
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Institution: | (1) Dipartimento di Chimica dell' Universita', via G. Capponi 9, 50121 Florence, Italy |
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Abstract: | Calculations of the elastic bending energy (E
bend) of several equilibrium forms of micelles belonging to a binary water-surfactant system (O/W) have been performed in a wide range of micelle volumes by using the surfactant parameter model proposed by Hyde (see ref.4]). The micelle forms, differently from the vesicle forms, obey restrictive requirements concerning the structure of their bulk, so the micelle forms are, to a large extent, predictablea priori. Each form shows a distinctiveE
bend/micelle volume curve which depends on the value of the surfactant parameterP
0 characteristic of the amphiphilic molecule in absence of external stresses. Transitions between different forms can occur —in principle — when and where two of these curves intersect each other. |
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Keywords: | Colloids surfactants amphiphilic aggregates self-assembly bending energy |
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