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231223s2006 xx ||||| 00| ||eng c |
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|a pubmed25n0533.xml
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|a (DE-627)NLM159782864
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|a (NLM)16378456
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|a DE-627
|b ger
|c DE-627
|e rakwb
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|a eng
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| 100 |
1 |
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|a Nunalee, F Nelson
|e verfasserin
|4 aut
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| 245 |
1 |
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|a QCM studies of gel spreading
|b Kraton gels on polystyrene surfaces
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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 18.04.2007
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|a Date Revised 24.11.2016
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|a published: Print
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|a Citation Status MEDLINE
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|a Contact of a polymer gel made from a styrene/ethylene-butene/styrene triblock copolymer in mineral oil was investigated by bringing the gel into contact with the coated surface of a quartz crystal microbalance (QCM). The experimental apparatus enabled simultaneous measurement of the load, displacement, and contact area, in addition to the resonant frequency and dissipation of the oscillating quartz crystal. The QCM response was determined by the linear viscoelastic properties of the gel at the frequency of oscillation. A geometric correction factor involving the contact area provided a means for quantitatively determining these viscoelastic parameters as the gel spread over the QCM surface. When the gel was removed from the surface, a thin solvent layer was left behind. The thickness of this solvent layer was determined from the QCM response and was compared to predictions from a simple model involving the disjoining pressure of the film and the osmotic pressure of the gel. Qualitative agreement with the model required that tensile, adhesive forces at the perimeter of the gel/QCM contact area were taken into account when calculating the film thickness
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|a Journal Article
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|a Research Support, N.I.H., Extramural
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|a Research Support, U.S. Gov't, Non-P.H.S.
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| 650 |
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|a Ethylenes
|2 NLM
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| 650 |
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|a Gels
|2 NLM
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|a Polystyrenes
|2 NLM
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|a Solvents
|2 NLM
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|a ethylene
|2 NLM
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|a 91GW059KN7
|2 NLM
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| 700 |
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|a Shull, Kenneth R
|e verfasserin
|4 aut
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| 773 |
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|i Enthalten in
|t Langmuir : the ACS journal of surfaces and colloids
|d 1991
|g 22(2006), 1 vom: 03. Jan., Seite 431-9
|w (DE-627)NLM098181009
|x 0743-7463
|7 nnns
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| 773 |
1 |
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|g volume:22
|g year:2006
|g number:1
|g day:03
|g month:01
|g pages:431-9
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