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|a pubmed24n0548.xml
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|a (NLM)16863225
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|a DE-627
|b ger
|c DE-627
|e rakwb
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|a eng
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|a Kelarakis, Antonis
|e verfasserin
|4 aut
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|a Micellar spheres in a high frequency oscillatory field
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|c 2006
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|a Text
|b txt
|2 rdacontent
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|a ohne Hilfsmittel zu benutzen
|b n
|2 rdamedia
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|a Band
|b nc
|2 rdacarrier
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|a Date Completed 03.08.2007
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|a Date Revised 25.07.2006
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|a published: Print
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|a Citation Status PubMed-not-MEDLINE
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|a The viscoelasticity of aqueous micellar solutions of two oxyethylene/oxybutylene block copolymers (E(92)B(18) and B(20)E(510)) has been investigated using a torsional resonator operated at 26 kHz. For both systems considered, values of the dynamic viscosity (eta'(infinity)) point to partial draining of the micellar corona induced by the high-frequency oscillatory field. At low effective volume fractions, values of the elastic modulus (G'(infinity)) indicate that the repulsive interactions between micelles can be modeled by a power law function u(r) proportional to 1/r(nu) with exponents close to 13 and 6 for copolymers E(92)B(18) and B(20)E(510) respectively. At a critical copolymer concentration (c*) plots of log(G'(infinity)) against log(c) deviate from the straight lines established at low concentrations, implying that the systems undergo ergodic/nonergodic transitions
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|a Journal Article
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|a Crassous, Jérôme J
|e verfasserin
|4 aut
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|a Ballauff, Matthias
|e verfasserin
|4 aut
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|a Yang, Zhuo
|e verfasserin
|4 aut
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|a Booth, Colin
|e verfasserin
|4 aut
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|i Enthalten in
|t Langmuir : the ACS journal of surfaces and colloids
|d 1992
|g 22(2006), 16 vom: 01. Aug., Seite 6814-7
|w (DE-627)NLM098181009
|x 1520-5827
|7 nnns
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|g volume:22
|g year:2006
|g number:16
|g day:01
|g month:08
|g pages:6814-7
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|a GBV_ILN_721
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|a AR
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|d 22
|j 2006
|e 16
|b 01
|c 08
|h 6814-7
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