Dilational viscoelasticity of PEO-PPO-PEO triblock copolymer films at the air-water interface in the range of high surface pressures

Langmuir : the ACS Journal of Surfaces and Colloids
B A NoskovR Miller

Abstract

The dynamic dilational elasticity of adsorbed and spread films of PEO-PPO-PEO triblock copolymers at the air-water interface was measured as a function of surface pressure, surface age, and frequency. At low surface pressures (<10 mN/m), the surface viscoelasticity is identical to that of PEO homopolymer films. The results at higher surface pressures can be explained by the desorption of PPO segments from the interface and then mixing with PEO segments in water. Unlike some recent results, the spread and adsorbed films are not identical. Spread films exhibit a maximum real part of the dynamic surface elasticity of about 20 mN/m and probably begin to dissolve in water at surface pressures above 19 mN/m. However, the surface elasticity of the adsorbed films decreases beyond the maximum, indicating the formation of a loose surface structure.

References

May 26, 1999·Journal of Colloid and Interface Science·V Aguié-BéghinR Douillard
Dec 31, 2002·Journal of Colloid and Interface Science·B A NoskovR Miller
Jun 24, 2003·Advances in Colloid and Interface Science·B A NoskovR Miller
Oct 20, 2004·Langmuir : the ACS Journal of Surfaces and Colloids·B A NoskovR Miller
Mar 19, 2005·Langmuir : the ACS Journal of Surfaces and Colloids·Arayik HambardzumyanRoger Douillard
Apr 20, 2005·Journal of Colloid and Interface Science·Lin-Chau ChangChurn-Shiouh Gau
Jun 29, 2005·Langmuir : the ACS Journal of Surfaces and Colloids·B Rippner BlomqvistP M Claesson
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Citations

Dec 3, 2014·Advances in Colloid and Interface Science·Takako Morioka, Masami Kawaguchi
Jul 26, 2011·The Journal of Physical Chemistry. B·A A MikhailovskayaR Miller
Jan 5, 2011·Journal of Colloid and Interface Science·Antonio StoccoReinhard Sigel
Dec 10, 2014·Advances in Colloid and Interface Science·Louise DeschênesFrançois Saint-Germain
Apr 2, 2008·Journal of Colloid and Interface Science·Lin-Chau ChangChurn-Shiouh Gau
Jan 16, 2007·Journal of Colloid and Interface Science·Ana M Díez-PascualReinhard Miller
Jun 29, 2013·Colloids and Surfaces. B, Biointerfaces·Luis M Pérez-MosquedaJosé Muñoz
Nov 19, 2013·Advances in Colloid and Interface Science·Boris A Noskov
May 12, 2012·Journal of Colloid and Interface Science·Pablo RamírezReinhard Miller
Sep 6, 2018·The European Physical Journal. E, Soft Matter·C TrégouëtC Monteux
Sep 17, 2009·The Journal of Physical Chemistry. B·B A NoskovR Miller
Nov 7, 2009·Langmuir : the ACS Journal of Surfaces and Colloids·Neus LozanoRamon Pons
Jun 3, 2020·Langmuir : the ACS Journal of Surfaces and Colloids·Michael L DavidsonLynn M Walker
Oct 9, 2019·Langmuir : the ACS Journal of Surfaces and Colloids·Ahmad MoghimikheirabadiLeonard M C Sagis
Feb 22, 2007·Langmuir : the ACS Journal of Surfaces and Colloids·Ana M Díez-PascualBoris A Noskov

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