Dynamic wetting of polyisoprene melts : influence of the end group

The spontaneous spreading of drops of polyisoprene melt terminated with methyl (PI-CH(3)), hydroxyl (PI-OH), and carboxyl groups (PI-COOH) on hydrophilic silicon surfaces has been studied experimentally. Despite the fact that all three polymers have a similar surface tension (0.032 N/m) at the polym...

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Veröffentlicht in:Langmuir : the ACS journal of surfaces and colloids. - 1992. - 26(2010), 4 vom: 16. Feb., Seite 2544-9
1. Verfasser: Liu, Chuanjun (VerfasserIn)
Weitere Verfasser: Bonaccurso, Elmar, Sokuler, Mordechai, Auernhammer, Günter K, Butt, Hans-Jürgen
Format: Online-Aufsatz
Sprache:English
Veröffentlicht: 2010
Zugriff auf das übergeordnete Werk:Langmuir : the ACS journal of surfaces and colloids
Schlagworte:Journal Article
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520 |a The spontaneous spreading of drops of polyisoprene melt terminated with methyl (PI-CH(3)), hydroxyl (PI-OH), and carboxyl groups (PI-COOH) on hydrophilic silicon surfaces has been studied experimentally. Despite the fact that all three polymers have a similar surface tension (0.032 N/m) at the polymer-air interface, the equilibrium contact angles were 29 degrees, <5 degrees, and 20 degrees, respectively. Spreading of PI-OH and PI-COOH is slowed down as compared to PI-CH(3), most probably due to the strong interfacial binding of the hydroxyl or carboxyl end group to the surface. We interpret and discuss the dynamic wetting experiments using the hydrodynamic and molecular kinetic theory of wetting 
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700 1 |a Bonaccurso, Elmar  |e verfasserin  |4 aut 
700 1 |a Sokuler, Mordechai  |e verfasserin  |4 aut 
700 1 |a Auernhammer, Günter K  |e verfasserin  |4 aut 
700 1 |a Butt, Hans-Jürgen  |e verfasserin  |4 aut 
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