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231224s2014 xx |||||o 00| ||eng c |
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|a 10.1021/la502245s
|2 doi
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|a eng
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|a Korayem, Asghar Habibnejad
|e verfasserin
|4 aut
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|a Transition and stability of copolymer adsorption morphologies on the surface of carbon nanotubes and implications on their dispersion
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|c 2014
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|a Text
|b txt
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|a ƒaComputermedien
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|2 rdamedia
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|a ƒa Online-Ressource
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|a Date Completed 12.05.2015
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|a Date Revised 26.08.2014
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|a published: Print-Electronic
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|a Citation Status PubMed-not-MEDLINE
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|a In this study, the adsorption morphologies as well as stability and transitions of a commercial dispersant copolymer (BYK 9076) on the surface of multiwalled carbon nanotubes (MWCNTs) were studied using Fourier transform infrared and UV-vis spectroscopy, dynamic light scattering, and electron microscopy techniques. The results show that the dispersion of carbon nanotubes in ethanol does not increase continuously with increasing copolymer/CNT ratio, which is correlated with the adsorption morphologies of the copolymer on the CNT surface. At a ratio of copolymer/CNT below 0.5, the morphology is random, shifting to a hemimicelle structure at a ratio from 0.5 to 1.0 while at ratios above 1.0, a cylindrical pattern is seen. The hemimicelle morphology is able to prevent the agglomeration of CNTs when the CNT concentration increases to 8.7 mg/mL, while cylindrical morphology is more efficient and stable to provide dispersion of CNTs at higher concentrations of CNTs
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|a Journal Article
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|a Barati, Mohammad Reza
|e verfasserin
|4 aut
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1 |
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|a Simon, George P
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Williams, Tim
|e verfasserin
|4 aut
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| 700 |
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|a Zhao, Xiao Ling
|e verfasserin
|4 aut
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| 700 |
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|a Stroeve, Pieter
|e verfasserin
|4 aut
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|a Duan, Wen Hui
|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 1992
|g 30(2014), 33 vom: 26. Aug., Seite 10035-42
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|x 1520-5827
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|g volume:30
|g year:2014
|g number:33
|g day:26
|g month:08
|g pages:10035-42
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|u http://dx.doi.org/10.1021/la502245s
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