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|a eng
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| 100 |
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|a Bazilevsky, Alexander V
|e verfasserin
|4 aut
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| 245 |
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|a Selective intercalation of polymers in carbon nanotubes
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|c 2007
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| 336 |
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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 Date Completed 14.09.2007
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|a Date Revised 26.06.2007
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|a published: Print-Electronic
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|a Citation Status PubMed-not-MEDLINE
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|a A room-temperature, open-air method is devised to selectively intercalate relatively low-molecular-weight polymers (approximately 10-100 kDa) from dilute, volatile solutions into open-end, as-grown, wettable carbon nanotubes with 50-100 nm diameters. The method relies on a novel self-sustained diffusion mechanism driving polymers from dilute volatile solutions into carbon nanotubes and concentrating them there. Relatively low-molecular-weight polymers, such as poly(ethylene oxide) (PEO, 600 kDa) and poly(caprolactone) (PCL, 80 kDa), were encapsulated in graphitic nanotubes as confirmed by transmission electron microscopy, which revealed morphologies characteristic of mixtures in nanoconfinements affected by intermolecular forces. Whereas relatively small, flexible polymer molecules can conform to enter these nanotubes, larger macromolecules (approximately 1000 kDa) remain outside. The selective nature of this process is useful for filling nanotubes with polymers and could also be valuable in capping nanotubes
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|a Journal Article
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|a Sun, Kexia
|e verfasserin
|4 aut
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1 |
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|a Yarin, Alexander L
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Megaridis, Constantine M
|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 1999
|g 23(2007), 14 vom: 03. Juli, Seite 7451-5
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|x 1520-5827
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