Calix[4]Arene and Calix[8]Arene Langmuir Films: Surface Studies, Optical and Structural Characterizations
Darvina Lim C.K1, Faridah L. Supian2
1Darvina Lim. C. K, Department of Physics, Faculty of Science and Mathematics, Sultan Idris Education University, Tanjong Malim, Perak, Malaysia.
2Faridah L. Supian, Department of Physics, Faculty of Science and Mathematics, Sultan Idris Education University, Tanjong Malim, Perak, Malaysia.
Manuscript received on 05 June 2019 | Revised Manuscript received on 12 June 2019 | Manuscript Published on 19 June 2019 | PP: 80-85 | Volume-8 Issue-8S June 2019 | Retrieval Number: H10150688S19/19©BEIESP
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© The Authors. Blue Eyes Intelligence Engineering and Sciences Publication (BEIESP). This is an open-access article under the CC-BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/)
Abstract: In this work, the characterization of calix[4]arene (C4) and calix[8]arene (C8) were studied using Langmuir-Blodgett (LB) technique, surface potential meter and UV-Visible spectrometer. The surface pressure – area isotherms demonstrated stable Langmuir C4 and C8 monolayers formed at the air/water interface. Several properties such as limiting area per molecule and molecule radius of C4 and C8 were determined using different spreading volumes in LB technique. Besides that, effective dipole moments and maximum surface potential of C4 and C8 were determined from surface potential values. In addition, UV-Vis spectroscopy stated that the peak absorbance of C4 occurred at 275nm with one “shoulder” peak exists at 283nm, whilst peak absorbance of C8 occurred at 287nm. Surface topography for C4 and C8 thin layer also been observed. This study wasper formed to determine several basic properties of these calixarenes for future works.
Keywords: Calixarenes, Langmuir-Blodgett, Surface Potential, UV-Visible Property.
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