Matches in SemOpenAlex for { <https://semopenalex.org/work/W2003231379> ?p ?o ?g. }
Showing items 1 to 83 of
83
with 100 items per page.
- W2003231379 endingPage "200" @default.
- W2003231379 startingPage "193" @default.
- W2003231379 abstract "We report electron spin resonance measurements of the magnetic susceptibility (χ) of the protonated conducting form of polyaniline (PANI) in solution in non-polar or weakly polar organic solvents and as thin films cast from such solutions. At room temperature, χ = 3 × 10−5 e.m.u./mol (two rings) for PANI films with camphor sulfonic acid (CSA) and dodecylsulfonic acid (DBSA) as counter-ions. In both cases, the concentration of localized Curie-Law spins is about 1% (per two rings of PANI). In solution,χ = 2.8 × 10−5 e.m.u./mol (two rings) for PANI-CSA in m-cresol and χ = 3.8 × 10−5 e.m.u./mol (two rings) for PANI-DBSA in xylene, and they are found to be temperature independent. In polyblends with PMMA, χ = 3 × 10−5 e.m.u./mol (two rings) at room temperature, independent of the volume fraction of PANI-CSA. The temperature independence implies a metallic state with Pauli spin susceptibility, χP, resulting from a density of states at the Fermi level of about 1 state per eV per two rings. The small Curie-law contribution demonstrates that the DBSA and CSA surfactant counter-ions (S−1) lead to higher quality material with reduced disorder. The concentration independence of χP in blends implies that the PANI complex is phase separated in the PMMA matrix, consistent with a network-like microstructure. Since the Pauli susceptibility indicates the existence of a true metallic state, the PANI-S− complexes are the first examples of metallic polymers in solution, i.e. stable ‘liquid metals’." @default.
- W2003231379 created "2016-06-24" @default.
- W2003231379 creator A5052797727 @default.
- W2003231379 creator A5087631107 @default.
- W2003231379 date "1992-10-01" @default.
- W2003231379 modified "2023-10-17" @default.
- W2003231379 title "Magnetic susceptibility of polyaniline in solution in non-polar organic solvents and in polyblends in poly(methyl methacrylate)" @default.
- W2003231379 cites W1973048245 @default.
- W2003231379 cites W2008968632 @default.
- W2003231379 cites W2012451621 @default.
- W2003231379 cites W2029061207 @default.
- W2003231379 cites W2031597075 @default.
- W2003231379 cites W2050511832 @default.
- W2003231379 cites W2068276658 @default.
- W2003231379 cites W2073618964 @default.
- W2003231379 cites W2090166574 @default.
- W2003231379 cites W2091423841 @default.
- W2003231379 doi "https://doi.org/10.1016/0379-6779(92)90307-5" @default.
- W2003231379 hasPublicationYear "1992" @default.
- W2003231379 type Work @default.
- W2003231379 sameAs 2003231379 @default.
- W2003231379 citedByCount "121" @default.
- W2003231379 countsByYear W20032313792012 @default.
- W2003231379 countsByYear W20032313792013 @default.
- W2003231379 countsByYear W20032313792014 @default.
- W2003231379 countsByYear W20032313792018 @default.
- W2003231379 countsByYear W20032313792020 @default.
- W2003231379 countsByYear W20032313792021 @default.
- W2003231379 countsByYear W20032313792022 @default.
- W2003231379 crossrefType "journal-article" @default.
- W2003231379 hasAuthorship W2003231379A5052797727 @default.
- W2003231379 hasAuthorship W2003231379A5087631107 @default.
- W2003231379 hasConcept C113196181 @default.
- W2003231379 hasConcept C133495861 @default.
- W2003231379 hasConcept C159985019 @default.
- W2003231379 hasConcept C16889073 @default.
- W2003231379 hasConcept C178790620 @default.
- W2003231379 hasConcept C185592680 @default.
- W2003231379 hasConcept C188027245 @default.
- W2003231379 hasConcept C192562407 @default.
- W2003231379 hasConcept C2777580120 @default.
- W2003231379 hasConcept C2777935641 @default.
- W2003231379 hasConcept C2778502040 @default.
- W2003231379 hasConcept C2780718992 @default.
- W2003231379 hasConcept C44228677 @default.
- W2003231379 hasConcept C521977710 @default.
- W2003231379 hasConcept C8010536 @default.
- W2003231379 hasConceptScore W2003231379C113196181 @default.
- W2003231379 hasConceptScore W2003231379C133495861 @default.
- W2003231379 hasConceptScore W2003231379C159985019 @default.
- W2003231379 hasConceptScore W2003231379C16889073 @default.
- W2003231379 hasConceptScore W2003231379C178790620 @default.
- W2003231379 hasConceptScore W2003231379C185592680 @default.
- W2003231379 hasConceptScore W2003231379C188027245 @default.
- W2003231379 hasConceptScore W2003231379C192562407 @default.
- W2003231379 hasConceptScore W2003231379C2777580120 @default.
- W2003231379 hasConceptScore W2003231379C2777935641 @default.
- W2003231379 hasConceptScore W2003231379C2778502040 @default.
- W2003231379 hasConceptScore W2003231379C2780718992 @default.
- W2003231379 hasConceptScore W2003231379C44228677 @default.
- W2003231379 hasConceptScore W2003231379C521977710 @default.
- W2003231379 hasConceptScore W2003231379C8010536 @default.
- W2003231379 hasIssue "2" @default.
- W2003231379 hasLocation W20032313791 @default.
- W2003231379 hasOpenAccess W2003231379 @default.
- W2003231379 hasPrimaryLocation W20032313791 @default.
- W2003231379 hasRelatedWork W2003041741 @default.
- W2003231379 hasRelatedWork W2004913908 @default.
- W2003231379 hasRelatedWork W2033869170 @default.
- W2003231379 hasRelatedWork W2074284628 @default.
- W2003231379 hasRelatedWork W2289475821 @default.
- W2003231379 hasRelatedWork W2316182848 @default.
- W2003231379 hasRelatedWork W2357232842 @default.
- W2003231379 hasRelatedWork W2385571564 @default.
- W2003231379 hasRelatedWork W3114471086 @default.
- W2003231379 hasRelatedWork W4254115631 @default.
- W2003231379 hasVolume "52" @default.
- W2003231379 isParatext "false" @default.
- W2003231379 isRetracted "false" @default.
- W2003231379 magId "2003231379" @default.
- W2003231379 workType "article" @default.