Linked Life Data

15268376

Source:http://linkedlifedata.com/resource/pubmed/id/15268376

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SubjectPredicateObjectContext
pubmed-article:15268376rdf:typepubmed:Citationlld:pubmed
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pubmed-article:15268376pubmed:issue5lld:pubmed
pubmed-article:15268376pubmed:dateCreated2004-7-22lld:pubmed
pubmed-article:15268376pubmed:abstractTextThe molecular dynamics were investigated in a series of "defect-free" oligofluorenes up to the polymer by dielectric spectroscopy (DS). The method is very sensitive to the presence of keto "defects" that when incorporated on the backbone give rise to poor optical and electronic properties. Two dielectrically active processes were found (beta and alpha process). The latter process (alpha) displays strongly temperature dependent relaxation times and temperature- and molecular weight-dependent spectral broadening associated with intramolecular correlations. The glass temperature (Tg) obeys the Fox-Flory equation and the polymer Tg is obtained by DS at 332 K. The effective dipole moment associated with the alpha process is 0.27 +/- 0.03 D.lld:pubmed
pubmed-article:15268376pubmed:languageenglld:pubmed
pubmed-article:15268376pubmed:journalhttp://linkedlifedata.com/r...lld:pubmed
pubmed-article:15268376pubmed:statusPubMed-not-MEDLINElld:pubmed
pubmed-article:15268376pubmed:monthFeblld:pubmed
pubmed-article:15268376pubmed:issn0021-9606lld:pubmed
pubmed-article:15268376pubmed:authorpubmed-author:WegnerGGlld:pubmed
pubmed-article:15268376pubmed:authorpubmed-author:ChiCClld:pubmed
pubmed-article:15268376pubmed:authorpubmed-author:PapadopoulosP...lld:pubmed
pubmed-article:15268376pubmed:authorpubmed-author:FloudasGGlld:pubmed
pubmed-article:15268376pubmed:copyrightInfoCopyright 2004 American Institute of Physicslld:pubmed
pubmed-article:15268376pubmed:issnTypePrintlld:pubmed
pubmed-article:15268376pubmed:day1lld:pubmed
pubmed-article:15268376pubmed:volume120lld:pubmed
pubmed-article:15268376pubmed:ownerNLMlld:pubmed
pubmed-article:15268376pubmed:authorsCompleteYlld:pubmed
pubmed-article:15268376pubmed:pagination2368-74lld:pubmed
pubmed-article:15268376pubmed:year2004lld:pubmed
pubmed-article:15268376pubmed:articleTitleMolecular dynamics of oligofluorenes: a dielectric spectroscopy investigation.lld:pubmed
pubmed-article:15268376pubmed:affiliationDepartment of Physics, University of Ioannina, P.O. Box 1186, 451 10 Ioannina, GreeceFoundation for Research and Technology-Hellas (FO.R.T.H.), Biomedical Research Institute (FORTH/BRI), Ioannina, Greece.lld:pubmed
pubmed-article:15268376pubmed:publicationTypeJournal Articlelld:pubmed