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231224s2013 xx |||||o 00| ||eng c |
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7 |
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|a 10.1021/la400604m
|2 doi
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|a pubmed24n0755.xml
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|a (NLM)23570339
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|a DE-627
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|c DE-627
|e rakwb
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|a eng
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| 100 |
1 |
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|a Morita, Clara
|e verfasserin
|4 aut
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|a Thermal-sensitive viscosity transition of elongated micelles induced by breaking intermolecular hydrogen bonding of amide groups
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|c 2013
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|a Text
|b txt
|2 rdacontent
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|a ƒaComputermedien
|b c
|2 rdamedia
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|a ƒa Online-Ressource
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|2 rdacarrier
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|a Date Completed 12.12.2013
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|a Date Revised 07.05.2013
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|a published: Print-Electronic
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|a Citation Status MEDLINE
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|a A heat-induced viscosity transition of novel worm-like micelles of a long alkyl-chain amidoamine derivative (C18AA) bearing intermolecular hydrogen-bonding group was investigated by cryo-TEM, FT-IR, and rheological measurements. At lower temperature, C18AA forms straight elongated micelles with a length on the order of micrometers due to strong intermolecular hydrogen-bonded packing of the amide groups, although the micelles rarely entangle and have low value of zero-shear viscosity. The straight elongated micelles likely became flexible and underwent a morphological transition from straight structure to worm-like structure at a certain temperature, which caused a drastic increase in viscosity due to entanglement of the micelles. This morphological transition was caused by a defect of intermolecular hydrogen bonding between the amide groups on heating. Furthermore, addition of LiCl, which acts as hydrogen-bond breaker, also promoted the viscosity transition, leading to a lowering of the transition temperature
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|a Journal Article
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|a Research Support, Non-U.S. Gov't
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|a Amides
|2 NLM
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|a Micelles
|2 NLM
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|a Imura, Yoshiro
|e verfasserin
|4 aut
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1 |
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|a Ogawa, Tetsuya
|e verfasserin
|4 aut
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1 |
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|a Kurata, Hiroki
|e verfasserin
|4 aut
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1 |
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|a Kawai, Takeshi
|e verfasserin
|4 aut
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| 773 |
0 |
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|i Enthalten in
|t Langmuir : the ACS journal of surfaces and colloids
|d 1992
|g 29(2013), 18 vom: 07. Mai, Seite 5450-6
|w (DE-627)NLM098181009
|x 1520-5827
|7 nnns
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| 773 |
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|g volume:29
|g year:2013
|g number:18
|g day:07
|g month:05
|g pages:5450-6
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|u http://dx.doi.org/10.1021/la400604m
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