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231223s2005 xx ||||| 00| ||eng c |
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|a pubmed25n0513.xml
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|a DE-627
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|e rakwb
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|a eng
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| 100 |
1 |
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|a Mouri, Emiko
|e verfasserin
|4 aut
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|a Nanostructure of a "carpet"-like dense layer/polyelectrolyte brush layer in a block copolymer monolayer at the air-water interface
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|c 2005
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| 336 |
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|a Text
|b txt
|2 rdacontent
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| 337 |
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|a ohne Hilfsmittel zu benutzen
|b n
|2 rdamedia
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| 338 |
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|a Band
|b nc
|2 rdacarrier
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| 500 |
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|a Date Completed 13.06.2006
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|a Date Revised 22.02.2005
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|a published: Print
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|a Citation Status PubMed-not-MEDLINE
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|a The "carpet"/brush double layer structure in the polyelectrolyte layer in the amphiphilic diblock copolymer monolayer at the air-water interface was quantitatively studied by in situ neutron reflectometry in addition to X-ray reflectivity measurements. As a result of the higher contrast between polyelectrolyte [poly(methacrylic acid)] and solvent (D(2)O) for the neutron, the brush structure could be estimated more accurately as a function of surface pressure, that is, brush density. The thickness of the carpet layer, which is thought to be formed to reduce the interfacial free energy between water and the hydrophobic layer, was almost constant at 10-20 A at any surface pressure studied. Growth was clearly observed in the whole brush length with increasing surface pressure, and it was estimated to be almost 60% of the full-stretch length of the ionic polymer chain. Furthermore, by the comparison of density profiles by neutron and X-ray reflectometry, an anomalous hydration was suggested
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|a Journal Article
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|a Matsumoto, Kozo
|e verfasserin
|4 aut
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1 |
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|a Matsuoka, Hideki
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Torikai, Naoya
|e verfasserin
|4 aut
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| 773 |
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8 |
|i Enthalten in
|t Langmuir : the ACS journal of surfaces and colloids
|d 1991
|g 21(2005), 5 vom: 01. März, Seite 1840-7
|w (DE-627)NLM098181009
|x 0743-7463
|7 nnns
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| 773 |
1 |
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|g volume:21
|g year:2005
|g number:5
|g day:01
|g month:03
|g pages:1840-7
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|d 21
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|h 1840-7
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