Linked Life Data

11445319

Source:http://linkedlifedata.com/resource/pubmed/id/11445319

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
3-4
pubmed:dateCreated
2001-7-10
pubmed:abstractText
Local order and molecular dynamics of liquids near surfaces strongly deviate from the behavior in the bulk. This in particular refers to liquid crystals above the bulk isotropization temperature. Transverse relaxation data of 5CB examined in porous glasses with different pore sizes are reported. A strong pore size effect was found. For the interpretation, a simple diffusion-adsorption computer simulation was carried out. Molecules can diffuse from the isotropic bulk part of the pore fluid to the ordered surface layer and vice versa. The residual dipolar correlation function is characterized by a slowly decaying tail owing to repeated returns of molecules to the surface. At each return the molecular orientation correlation is recovered as far as the surface sites visited have orientations correlated to the initial site. That is, molecular orientation is controlled by the "reorientation mediated by translational displacement" process considered in previous papers.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:issn
0730-725X
pubmed:author
pubmed:issnType
Print
pubmed:volume
19
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
401-4
pubmed:dateRevised
2010-11-18
pubmed:meshHeading
pubmed:articleTitle
Surface effects and dipolar correlations of confined and constrained liquids investigated by NMR relaxation experiments and computer simulations.
pubmed:affiliation
Sektion Kernresonanzspektroskopie, Universität Ulm, 89069, Ulm, Germany. farida.grinberg@physik.uni-ulm.de
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't