Phase behavior of oleyl oleate with nonionic surfactants
Oleyl oleate (OE), a liquid wax ester, has been reported as a potential raw material for cosmetic and pharmaceutical uses but little is known about its phase behavior in ternary systems. Two types of nonionic surfactants were selected, namely, Tween-60 (T60) and Span 20 (S20). Phase diagrams of OE/T...
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Format: | Article |
Language: | English |
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Taylor & Francis
2005
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Online Access: | http://psasir.upm.edu.my/id/eprint/7104/1/Phase%20behavior%20of%20oleyl%20oleate%20with%20nonionic%20surfactants.pdf |
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author | Sulaiman, Azmahani Basri, Mahiran Salleh, Abu Bakar Raja Abdul Rahman, Raja Noor Zaliha Ahmad, Salmiah |
author_facet | Sulaiman, Azmahani Basri, Mahiran Salleh, Abu Bakar Raja Abdul Rahman, Raja Noor Zaliha Ahmad, Salmiah |
author_sort | Sulaiman, Azmahani |
collection | UPM |
description | Oleyl oleate (OE), a liquid wax ester, has been reported as a potential raw material for cosmetic and pharmaceutical uses but little is known about its phase behavior in ternary systems. Two types of nonionic surfactants were selected, namely, Tween-60 (T60) and Span 20 (S20). Phase diagrams of OE/T60/water and OE/S20/water systems were constructed at 25.0±0.5°C. Ternary phase diagrams of OE/T60:S20 (20:80 and 60:40)/water systems were then constructed at the same temperature. The ratios of 80:20 and 60:40 of T60:S20 were selected due to different solubility points of the surfactants in water. The results showed that the oleyl oleate with mixed surfactants system, OE/T60:S20 (20:80 and 60:40)/water, gave better performance than the individual surfactant systems. The high percent of T60 of 80:20 in the T60:S20 system contributes to enlargement of the isotropic region. In contrast, by increasing the percent of S20 of 60:40 in T60:S20 contributes to a larger liquid crystalline region. |
first_indexed | 2024-03-06T07:11:15Z |
format | Article |
id | upm.eprints-7104 |
institution | Universiti Putra Malaysia |
language | English |
last_indexed | 2024-03-06T07:11:15Z |
publishDate | 2005 |
publisher | Taylor & Francis |
record_format | dspace |
spelling | upm.eprints-71042016-09-26T08:09:29Z http://psasir.upm.edu.my/id/eprint/7104/ Phase behavior of oleyl oleate with nonionic surfactants Sulaiman, Azmahani Basri, Mahiran Salleh, Abu Bakar Raja Abdul Rahman, Raja Noor Zaliha Ahmad, Salmiah Oleyl oleate (OE), a liquid wax ester, has been reported as a potential raw material for cosmetic and pharmaceutical uses but little is known about its phase behavior in ternary systems. Two types of nonionic surfactants were selected, namely, Tween-60 (T60) and Span 20 (S20). Phase diagrams of OE/T60/water and OE/S20/water systems were constructed at 25.0±0.5°C. Ternary phase diagrams of OE/T60:S20 (20:80 and 60:40)/water systems were then constructed at the same temperature. The ratios of 80:20 and 60:40 of T60:S20 were selected due to different solubility points of the surfactants in water. The results showed that the oleyl oleate with mixed surfactants system, OE/T60:S20 (20:80 and 60:40)/water, gave better performance than the individual surfactant systems. The high percent of T60 of 80:20 in the T60:S20 system contributes to enlargement of the isotropic region. In contrast, by increasing the percent of S20 of 60:40 in T60:S20 contributes to a larger liquid crystalline region. Taylor & Francis 2005-11 Article PeerReviewed application/pdf en http://psasir.upm.edu.my/id/eprint/7104/1/Phase%20behavior%20of%20oleyl%20oleate%20with%20nonionic%20surfactants.pdf Sulaiman, Azmahani and Basri, Mahiran and Salleh, Abu Bakar and Raja Abdul Rahman, Raja Noor Zaliha and Ahmad, Salmiah (2005) Phase behavior of oleyl oleate with nonionic surfactants. Journal of Dispersion Science and Technology, 26 (6). pp. 689-691. ISSN 0193-2691; ESSN: 1532-2351 http://www.tandfonline.com/doi/abs/10.1081/DIS-200062937 10.1081/DIS-200062937 |
spellingShingle | Sulaiman, Azmahani Basri, Mahiran Salleh, Abu Bakar Raja Abdul Rahman, Raja Noor Zaliha Ahmad, Salmiah Phase behavior of oleyl oleate with nonionic surfactants |
title | Phase behavior of oleyl oleate with nonionic surfactants |
title_full | Phase behavior of oleyl oleate with nonionic surfactants |
title_fullStr | Phase behavior of oleyl oleate with nonionic surfactants |
title_full_unstemmed | Phase behavior of oleyl oleate with nonionic surfactants |
title_short | Phase behavior of oleyl oleate with nonionic surfactants |
title_sort | phase behavior of oleyl oleate with nonionic surfactants |
url | http://psasir.upm.edu.my/id/eprint/7104/1/Phase%20behavior%20of%20oleyl%20oleate%20with%20nonionic%20surfactants.pdf |
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