Source:http://linkedlifedata.com/resource/pubmed/id/15600943
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
20
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pubmed:dateCreated |
2004-12-16
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pubmed:abstractText |
Spreading of a polymer drop on a solid substrate was monitored with molecular resolution. Three characteristic rates, i.e., the spreading rate of the precursor film D(spread)=(3.9+/-0.2)x10(3) nm(2)/s, the flow-induced diffusion rate of molecules within the film D(induced)=1.3+/-0.1 nm(2)/s, and the thermal diffusion coefficient of single molecules D(therm)</=0.10+/-0.03 nm(2)/s, were independently measured. Since D(spread)>>D(induced), the plug flow of polymer chains was identified as the main mass-transport mechanism of spreading with an insignificant contribution from the molecular diffusion.
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pubmed:language |
eng
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pubmed:journal | |
pubmed:status |
PubMed-not-MEDLINE
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pubmed:month |
Nov
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pubmed:issn |
0031-9007
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pubmed:author | |
pubmed:issnType |
Print
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pubmed:day |
12
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pubmed:volume |
93
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
206103
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pubmed:year |
2004
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pubmed:articleTitle |
Molecular motion in a spreading precursor film.
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pubmed:affiliation |
Department of Chemistry, University of North Carolina at Chapel Hill, North Carolina 27599-3290, USA.
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pubmed:publicationType |
Journal Article
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