Effect of Type of Fragrance Compounds on Their Location in Hexagonal Liquid Crystal |
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| Authors: | Ibrahim Kayali Khawla Qamhieh Bjorn Lindman |
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| Institution: | 1. Department of Chemistry and Chemical Technology , College of Science and Technology, Al‐Quds University , Jerusalem, Palestine i_kayali@yahoo.com;3. Department of Physics , College of Science and Technology, Al‐Quds University , Jerusalem, Palestine;4. Physical Chemistry 1 , Center for Chemistry and Chemical Engineering, Lund University , Lund, Sweden |
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| Abstract: | Three fragrances, limonene, benzaldehyde, and phenethylalcohol (that differ in their polarities), were solubilized in hexagonal liquid crystal using the polyethylene oxide‐polypropylene oxide‐polyethylene oxide, (EO27 PO61 EO27), P104 triblock copolymer, and water. The interlayer spacing of the hexagonal liquid crystals were established using small‐angle x‐ray scattering (SAXS). The SAXS data are used to calculate the interfacial area per polyethylene oxide (PEO) block and the radius of the apolar domain in order to determine the location of each fragrance in the association structure. The results show the presence of limonene inside the core of the apolar domain while benzaldehyde is only partially located inside the core with the other part contributing to the interface. The third fragrance, phenethylalcohol, is present between the polar heads, thus, contributing entirely to the interface. |
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| Keywords: | Fragrance block copolymer solubilization location liquid crystals |
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