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Interfacial Assembly of Diethyl Ester Glutamic Acid Terminated Bolaamphiphile at the Air/Water Interface: Chiral Interaction and Morphology
Cao Hai; Jiang Jian; Zhu Xue-Feng; Duan Peng-Fei; Liu Ming-Hua
2010-07-01
Source PublicationACTA PHYSICO-CHIMICA SINICA
ISSN1000-6818
Volume26Issue:7Pages:1842-1846
AbstractWe investigated the self. assembly behavior of bolaamphiphilic tetraethyl ester-di-L-glutamicacid-N,N'-hexadecanedioic amide (L-HDGE) and its enantiomer D-HDGE at the air/water interface. The self. assembled structures of the HDGE (L-HDGE or D-HDGE) molecule at the air/water interface and some other factors that affect the assembled structures, such as the chirality of the hydrophilic head group, surface tension, and ionic liquid subphase were studied. Atomic force microscopy (AFM) and Fourier transform infrared (FTIR) spectroscopy were employed to investigate the morphology and assembly mechanism of the transferred film. The HDGE molecule was found to form parallel nanowires on the surface of water with widths from 50 to 120 nm and heights from 1 to 5 nm while only a thin film was obtained when the racemic mixture was used under the same conditions. The FTIR spectra show that the heterochiral interaction of the HDGE molecule is stronger than the homochiral interaction. With an increase in surface tension, the parallel nanowires aggregate. Trace amounts of ionic liquid added to the subphase remarkably accelerated the aggregation of the nanowires to yield nanostrips, and some helical structures were observed when the surface tension was increased. The handedness of the helical structures was determined by the molecular chirality of the head group.
KeywordIonic Liquid Bolaamphiphile Air/water Interface Chiral Interaction Helix
DOI10.3866/PKU.WHXB20100716
Indexed BySCI
Language英语
WOS IDWOS:000279776400016
PublisherPEKING UNIV PRESS
Citation statistics
Cited Times:1[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.iccas.ac.cn/handle/121111/69950
Collection中国科学院化学研究所
Corresponding AuthorLiu Ming-Hua
AffiliationChinese Acad Sci, Inst Chem, CAS Key Lab Colloid & Interface Sci, Beijing 100190, Peoples R China
Recommended Citation
GB/T 7714
Cao Hai,Jiang Jian,Zhu Xue-Feng,et al. Interfacial Assembly of Diethyl Ester Glutamic Acid Terminated Bolaamphiphile at the Air/Water Interface: Chiral Interaction and Morphology[J]. ACTA PHYSICO-CHIMICA SINICA,2010,26(7):1842-1846.
APA Cao Hai,Jiang Jian,Zhu Xue-Feng,Duan Peng-Fei,&Liu Ming-Hua.(2010).Interfacial Assembly of Diethyl Ester Glutamic Acid Terminated Bolaamphiphile at the Air/Water Interface: Chiral Interaction and Morphology.ACTA PHYSICO-CHIMICA SINICA,26(7),1842-1846.
MLA Cao Hai,et al."Interfacial Assembly of Diethyl Ester Glutamic Acid Terminated Bolaamphiphile at the Air/Water Interface: Chiral Interaction and Morphology".ACTA PHYSICO-CHIMICA SINICA 26.7(2010):1842-1846.
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