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Citation: Lv Qing, Li Lin, Liu Ming-Hua. Structures of Langmuir Films of Bolaamphiphiles at the Air/Water Interface[J]. Acta Physico-Chimica Sinica, ;2001, 17(08): 765-768. doi: 10.3866/PKU.WHXB20010821 shu

Structures of Langmuir Films of Bolaamphiphiles at the Air/Water Interface

1.
Laboratory of Colloid and Interface Science,2State Key Laboratory of High Polymer Physics and Chemistry,Center of Molecular Science,Institute of Chemistry,Chinese Academy of Sciences, Beijing　100080

Received Date: 7 February 2001
Available Online: 15 August 2001

Bolaamphiphile, in which two head groups are linked by one or two hydrophobic chains,has been attracting much interest in recent years. The structures of the Langmuir films spread from two novel bolaamphiphiles containing α-naphthyl and β-naphthyl groups at the air/water interface have been investigated. Surface pressure -area isotherms,AFM and XRD measurements reveal that when spreading at the air/water surface,the molecule containing α-naphthyl forms a triple-layer Langmuir film,while the one containing β-naphthyl forms a stretched monolayer.
- Bolaamphiphile;Air/water interface;Stretched monolayer
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