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231224s2011 xx |||||o 00| ||eng c |
| 024 |
7 |
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|a 10.1021/la200851j
|2 doi
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|a pubmed24n0695.xml
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|a DE-627
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|e rakwb
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| 041 |
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|a eng
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| 100 |
1 |
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|a Kim, Wun-gwi
|e verfasserin
|4 aut
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| 245 |
1 |
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|a Swelling, functionalization, and structural changes of the nanoporous layered silicates AMH-3 and MCM-22
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| 264 |
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1 |
|c 2011
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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 ƒaComputermedien
|b c
|2 rdamedia
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| 338 |
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|a ƒa Online-Ressource
|b cr
|2 rdacarrier
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| 500 |
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|a Date Completed 28.09.2011
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|a Date Revised 14.06.2011
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|a published: Print-Electronic
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|a Citation Status PubMed-not-MEDLINE
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|a © 2011 American Chemical Society
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|a Nanoporous layered silicate materials contain 2D-planar sheets of nanoscopic thickness and ordered porous structure. In comparison to porous 3D-framework materials such as zeolites, they have advantages such as significantly increased surface area and decreased diffusion limitations because the layers can potentially be exfoliated or intercalated into polymers to form nanocomposite materials. These properties are particularly interesting for applications as materials for enhancing molecular selectivity and throughput in composite membranes. In this report, the swelling and surface modification chemistry of two attractive nanoporous layered silicate materials, AMH-3 and MCM-22, were studied. We first describe a method, using long-chain diamines instead of monoamines, for swelling of AMH-3 while preserving its pore structure to a greater extent during the swelling process. Then, we describe a stepwise functionalization method for functionalizing the layer surfaces of AMH-3 and MCM-22 via silane condensation reactions. The covalently attached hydrocarbon chain molecules increased the hydrophobicity of AMH-3 and MCM-22 layer surfaces and therefore allow the possibility of effectively dispersing these materials in polymer matrices for thin film/membrane applications
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| 650 |
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4 |
|a Journal Article
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| 700 |
1 |
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|a Choi, Sunho
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Nair, Sankar
|e verfasserin
|4 aut
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| 773 |
0 |
8 |
|i Enthalten in
|t Langmuir : the ACS journal of surfaces and colloids
|d 1999
|g 27(2011), 12 vom: 21. Juni, Seite 7892-901
|w (DE-627)NLM098181009
|x 1520-5827
|7 nnns
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| 773 |
1 |
8 |
|g volume:27
|g year:2011
|g number:12
|g day:21
|g month:06
|g pages:7892-901
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| 856 |
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|u http://dx.doi.org/10.1021/la200851j
|3 Volltext
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|d 27
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