Self-diffusion of supercooler o-terphenyl near the glass transition temperature
Article Abstract:
Self-diffusion coefficients for the low molecular weight glass former o-terphenyl are investigated near T(sub g) by isothermally desorbing thin film bilayers of deuterio and protio o-terphenyl in a vacuum chamber. Translational diffusion that is about 100 times faster at T(sub g) + 3 k than the Stokes-Einstein prediction are observed.
Publication Name: Journal of Physical Chemistry B
Subject: Chemicals, plastics and rubber industries
ISSN: 1520-6106
Year: 2006
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Ionization energy and electronic structure of polycytidine
Article Abstract:
Ribonucleic acid (RNA) polycytidine (poly rC) homopolymer thin film was prepared on highly ordered pyrolytic graphite (HOPG) with electrospray (ES) deposition in a vacuum. The larger ionization energy of poly rC results in a larger hole injection barrier and a smaller electron injection barrier relative to the HOPG Fermi level.
Publication Name: Journal of Physical Chemistry B
Subject: Chemicals, plastics and rubber industries
ISSN: 1520-6106
Year: 2006
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Dielectric signature of a dead layer in ultrathin films of a nonpolar polymer
Article Abstract:
Extremely thin films of poly(styrene) which exhibit the phenomenon of continuous increase of the capacitance with temperature and a gradual defreezing of the interfacial zone between the dead layer and the bulk is demonstrated.
Publication Name: Journal of Physical Chemistry B
Subject: Chemicals, plastics and rubber industries
ISSN: 1520-6106
Year: 2007
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