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Chemicals, plastics and rubber industries

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Hydration of poly(ethylene oxide)s in aqueous solution as studied by dielectric relaxation measurements

Article Abstract:

Frequency (omega) domain dielectric relaxation measurements are used to investigate the hydration state of poly(ethylene oxide)s in aqueous solutions. The results have shown that water molecules hydrated to ethylene oxide units possessing the lifetime of hydration significantly longer than the relaxation time of coexisting bulk water molecules, which keep dielectric relaxation strength greater than that of the bulk water molecules.

Author: Shikata, Toshiyuki, Takahashi, Rintaro, Sakamoto, Aiko
Publisher: American Chemical Society
Publication Name: Journal of Physical Chemistry B
Subject: Chemicals, plastics and rubber industries
ISSN: 1520-6106
Year: 2006
All Other Basic Organic Chemical Manufacturing, Industrial organic chemicals, not elsewhere classified, Ethylene Oxide, Observations, Dielectric relaxation, Aqueous solution reactions, Chemical properties

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Dilational viscoelasticity of polyelectolyte/surfactant adsorption films at the air/water interface: Dodecyltrimethylammonium bromide and sodium poly(styrenesulfonate)

Article Abstract:

The dynamic surface elasticity of mixed aqueous poly(styrenesulfonate)/alkyltrimethylammonium bromide solutions is measured by the oscillating barrier, oscillating drop, and capillary wave methods as a function of time and surfactant concentration. It was found that at low surfactant concentrations (less than 0.3 mM) the surface viscoelastic behavior is close to that of relatively concentrated pure PSS solutions.

Author: Miller, R., Noskov, B.A., Loglio, G.
Publisher: American Chemical Society
Publication Name: Journal of Physical Chemistry B
Subject: Chemicals, plastics and rubber industries
ISSN: 1520-6106
Year: 2004
Science & research, All Other Miscellaneous Chemical Product and Preparation Manufacturing, Chemical preparations, not elsewhere classified, Polyelectrolytes, Research, Viscoelastic materials

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