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231224s2015 xx |||||o 00| ||eng c |
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|a 10.1021/la504429c
|2 doi
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|a pubmed25n0816.xml
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|a (DE-627)NLM244998035
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|a (NLM)25552325
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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 Huang, Yun
|e verfasserin
|4 aut
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| 245 |
1 |
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|a Synthesis of iron oxide rods coated with polymer brushes and control of their assembly in thin films
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|c 2015
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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
|b cr
|2 rdacarrier
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|a Date Completed 30.09.2015
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|a Date Revised 19.11.2015
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|a published: Print-Electronic
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|a Citation Status MEDLINE
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|a We investigated the surface-initiated atom transfer radical polymerization (SI-ATRP) of methyl methacrylate (MMA) using monodisperse rod-type particles of iron oxide, β-FeOOH. The slow hydrolysis of iron(III) chloride yielded monodisperse β-FeOOH rods with an average length-to-width ratio, L/W, of 6 (L = 210 nm and W = 35 nm on average). The surfaces of the β-FeOOH rods were modified with a triethoxysilane derivative as an ATRP-initiating site, namely, (2-bromo-2-methyl)propionyloxypropyl triethoxysilane. The SI-ATRP of MMA, mediated by a copper complex, was performed using the initiator-coated β-FeOOH rods in the presence of a "sacrificial" free initiator. Well-defined poly(methyl methacrylate) (PMMA) brushes with molecular weights of up to 700,000 could be grafted on the β-FeOOH rods with a surface density as high as 0.3 chains/nm(2). The resultant polymer-brush-afforded hybrid rods exhibited high dispersibility in various solvents for PMMA without forming aggregates. Thin films were prepared by dip-coating from a suspension of the hybrid rods, and the rods were oriented in a specific direction in the films. The arrangement of the rods could be controlled by varying the chain length of the polymer brush and the withdrawal speed during the dip-coating process
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|a Journal Article
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|a Chlorides
|2 NLM
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|a Ferric Compounds
|2 NLM
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|a Silanes
|2 NLM
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|a Solvents
|2 NLM
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|a ferric oxide
|2 NLM
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|a 1K09F3G675
|2 NLM
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|a Polymethyl Methacrylate
|2 NLM
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|a 9011-14-7
|2 NLM
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|a ferric chloride
|2 NLM
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|a U38V3ZVV3V
|2 NLM
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| 700 |
1 |
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|a Ishige, Ryohei
|e verfasserin
|4 aut
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1 |
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|a Tsujii, Yoshinobu
|e verfasserin
|4 aut
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| 700 |
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|a Ohno, Kohji
|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 1985
|g 31(2015), 3 vom: 27. Jan., Seite 1172-9
|w (DE-627)NLM098181009
|x 1520-5827
|7 nnns
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| 773 |
1 |
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|g volume:31
|g year:2015
|g number:3
|g day:27
|g month:01
|g pages:1172-9
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|u http://dx.doi.org/10.1021/la504429c
|3 Volltext
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