Confinement and Cross-Linking of 1,2-Polybutadiene in Two Dimensions at the Air-Water Interface

Langmuir monolayers of 1,2-polybutadiene (PB) were investigated by means of surface pressure-area isotherms, Brewster angle microscopy (BAM) observations, and sum-frequency generation (SFG) spectroscopy. A homogeneous and stable monolayer is formed 1.5 h after PB spreading provided that both light a...

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Veröffentlicht in:Langmuir : the ACS journal of surfaces and colloids. - 1985. - 36(2020), 4 vom: 04. Feb., Seite 862-871
1. Verfasser: Vaillard, Anne-Sophie (VerfasserIn)
Weitere Verfasser: El Haitami, Alae, Dreier, Lisa B, Backus, Ellen H G, Cantin, Sophie
Format: Online-Aufsatz
Sprache:English
Veröffentlicht: 2020
Zugriff auf das übergeordnete Werk:Langmuir : the ACS journal of surfaces and colloids
Schlagworte:Journal Article
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520 |a Langmuir monolayers of 1,2-polybutadiene (PB) were investigated by means of surface pressure-area isotherms, Brewster angle microscopy (BAM) observations, and sum-frequency generation (SFG) spectroscopy. A homogeneous and stable monolayer is formed 1.5 h after PB spreading provided that both light and oxygen are present. This was attributed to a slight oxidation of the PB at the air-water interface. The cross-linking of PB under UV photoirradiation was then studied. SFG spectroscopy demonstrates the in situ formation of a two-dimensional network. From surface pressure-area characterizations and BAM experiments, the cross-linked PB monolayer appears significantly denser and more rigid than the non-irradiated monolayer. Atomic force microscopy images reveal an increase by a factor of three in the root-mean-square roughness of the irradiated monolayers compared with the non-irradiated ones 
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700 1 |a Dreier, Lisa B  |e verfasserin  |4 aut 
700 1 |a Backus, Ellen H G  |e verfasserin  |4 aut 
700 1 |a Cantin, Sophie  |e verfasserin  |4 aut 
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