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Titolo:
FTIR studies on Langmuir-Blodgett (LB) films of amphiphile with Schiff base moiety as headgroup
Autore:
Pang, S; Li, C; Huang, J; Liang, Y;
Indirizzi:
Nanjing Univ, Inst Mesoscop Solid State Chem, Nanjing 210093, Peoples R China Nanjing Univ Nanjing Peoples R China 210093 jing 210093, Peoples R China Nanjing Univ, State Key Lab Coordinat Chem, Nanjing 210093, Peoples R China Nanjing Univ Nanjing Peoples R China 210093 jing 210093, Peoples R China
Titolo Testata:
MATERIALS SCIENCE & ENGINEERING C-BIOMIMETIC AND SUPRAMOLECULAR SYSTEMS
fascicolo: 2, volume: 11, anno: 2000,
pagine: 137 - 143
SICI:
0928-4931(200009)11:2<137:FSOL(F>2.0.ZU;2-W
Fonte:
ISI
Lingua:
ENG
Soggetto:
SIDE-CHAIN; COMPLEXES; DISPLAY;
Keywords:
FTIR spectroscopy; H-bond; LB film;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Physical, Chemical & Earth Sciences
Citazioni:
19
Recensione:
Indirizzi per estratti:
Indirizzo: Liang, Y Nanjing Univ, Inst Mesoscop Solid State Chem, Nanjing 210093, Peoples R China Nanjing Univ Nanjing Peoples R China 210093 93, Peoples R China
Citazione:
S. Pang et al., "FTIR studies on Langmuir-Blodgett (LB) films of amphiphile with Schiff base moiety as headgroup", MAT SCI E C, 11(2), 2000, pp. 137-143

Abstract

In the present study, an amphiphile 2,4-dihydroxy-N-octadecylbenzylideneamine with novel structure was designed and synthesized. The aggregation structure of this amphiphile in IB films was investigated through FTIR spectroscopic techniques. The surface pressure-dependent infrared spectra of LB films have revealed some important insights on the bonded properties of the headgroup for this amphiphile. It was found that the types of H-bond formed among/between the Schiff base headgroups are determined by the deposition pressure. Intermolecular Ii-bond is prominent in Z-type LB film deposited at a surface pressure of less than or equal to 30 mN/m, while intramolecular II-bond formed between 2-hydroxyl group and the azomethine nitrogen is more favorable in Y-type LB film fabricated at a surface pressure of greater than or equal to 40 mN/m. The variable-temperature infrared spectra of LB films further provide powerful evidence for the conversion between intermolecular and intramolecular H-bond, depending on the surface pressure. (C) 2000 Elsevier Science B.V. All rights reserved.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 05/12/20 alle ore 03:03:37