Effect of pH on the control of molecular orientation in monolayer of bent-core liquid crystal materials by Langmuir–Blodgett method
作者： Ramneek Kaur , Gurpreet Kaur Bhullar , Nandiraju V.S. Rao , K.K. Raina
DOI: 10.1080/02678292.2014.956352
关键词: Langmuir 、 Silicon 、 Surface pressure 、 Nanotechnology 、 Chemical engineering 、 Alkyl 、 Langmuir–Blodgett film 、 Monolayer 、 Materials science 、 Substrate (electronics) 、 Liquid crystal
摘要: Control of molecular orientation at the substrate surface is significant to understand science. Langmuir films bent-core liquid crystals having alkyl chains both ends were deposited on silicon substrate. Studies carried out air–water interface by changing pH subphase. On compression, molecules arranged in stacks high where as uniform monolayer was formed lower pH. Limiting area increased low pH, which resulted formation after attaining a sustainable pressure. transferred substrate, and atomic force microscopy images showed appropriate height profiles.
sci-hub.se 参考文章(44)
Michael C. Petty, Langmuir-Blodgett Films: An Introduction ,(1996)
Qingbin Xue, Kongzhang Yang, Chen Xiao, Qizhen Zhang, Direct observation of 2-D phase transitions of Chiral liquid crystals at the air/water interface Thin Solid Films. ,vol. 347, pp. 263- 271 ,(1999) , 10.1016/S0040-6090(99)00030-9
Lu Zou, Ji Wang, Violeta J. Beleva, Edgar E. Kooijman, Svetlana V. Primak, Jens Risse, Wolfgang Weissflog, Antal Jákli, Elizabeth K. Mann, Langmuir monolayers of bent-core molecules. Langmuir. ,vol. 20, pp. 2772- 2780 ,(2004) , 10.1021/LA0361924
Lap Tak Cheng, Wilson Tam, Sylvia H. Stevenson, Gerald R. Meredith, Geert Rikken, Seth R. Marder, Experimental investigations of organic molecular nonlinear optical polarizabilities. 1. Methods and results on benzene and stilbene derivatives The Journal of Physical Chemistry. ,vol. 95, pp. 10631- 10643 ,(1991) , 10.1021/J100179A026
Leila Dziri, Salah Boussaad, Nongjian Tao, Roger M. Leblanc, Effect of pH on acetylcholinesterase Langmuir and Langmuir-Blodgett films studied by surface potential and atomic force microscopy Thin Solid Films. ,vol. 327, pp. 56- 59 ,(1998) , 10.1016/S0040-6090(98)00587-2
Shilpa Harish T, P. Viswanath, Effect of cations on condensation of a mesogenic amphiphilic molecule at the air-aqueous electrolyte interface. Physical Chemistry Chemical Physics. ,vol. 16, pp. 1276- 1282 ,(2014) , 10.1039/C3CP53751J
Marc N. G. de Mul, J. Adin Mann, Multilayer Formation in Thin Films of Thermotropic Liquid Crystals at the Air-Water Interface Langmuir. ,vol. 10, pp. 2311- 2316 ,(1994) , 10.1021/LA00019A048
TF Heinz, HWK Tom, Yo R Shen, None, DETERMINATION OF MOLECULAR ORIENTATION OF MONOLAYER ADSORBATES BY OPTICAL SECOND-HARMONIC GENERATION Physical Review A. ,vol. 28, pp. 1883- 1885 ,(1983) , 10.1103/PHYSREVA.28.1883
Le-Thu T. Nguyen, Aditya Ardana, Eltjo J. Vorenkamp, Gerrit ten Brinke, Arend J. Schouten, Chain length dependence of the helix orientation in Langmuir-Blodgett monolayers of alpha-helical diblock copolypeptides Soft Matter. ,vol. 6, pp. 2774- 2785 ,(2010) , 10.1039/C001163K
Ignacio Giner, Ignacio Gascón, Jorge Vergara, M. Carmen López, M. Blanca Ros, Félix M. Royo, Molecular arrangement in Langmuir and Langmuir-Blodgett films of a mesogenic bent-core carboxylic acid. Langmuir. ,vol. 25, pp. 12332- 12339 ,(2009) , 10.1021/LA901614P