ASSOCIATION PHENOMENON OF A MIXED CATIONIC SURFACTANT IN NON-AQUEOUS SYSTEM |
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| Authors: | Suhaimi Hamdan Che Rose Laili |
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| Affiliation: | 1. Chemistry Department , Universiti Pertanian Malaysia , Serdang, Selangor, UPM 43400, MALAYSIA;2. Centre of Matriculation Studies Universiti Pertanian Malaysia , Serdang, Selangor, UPM 43400, MALAYSIA |
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| Abstract: | Pseudoternary phase diagrams of a mixture of two cationic surfactants, hexan-1-ol and a third component consisting of glycerol, formamide, water/glycerol or water/formamide were obtained. These diagrams were then contrasted with its water counterpart. The results showed that the association phenomenon were entirely different from that of the corresponding water system. The lamellar liquid crystalline region was absent in both of the glycerol or formamide systems. This indicated a less ordered or destabilizing effect in the association structure resulting in the replacement water with that of glycerol or formamide. The presence of formamide resulted in a more destabilizing effect compared to the glycerol. This was shown by the smaller lamellar liquid crystal region obtained in the pseudoternary phase diagram containing equal weight ratio of water and formamide. |
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