Zobrazeno 1 - 10
of 72
pro vyhledávání: '"Mauro Lucchesi"'
A route to extend the measurement bandwidth of local dielectric spectroscopy up to the MHz range has been devised. The method is based on a slow amplitude modulation at a frequency Ω of the excitation field oscillating at a frequency ω and the cohe
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0b3050f1591c103d9e2db10b97904971
http://hdl.handle.net/11568/843749
http://hdl.handle.net/11568/843749
Autor:
Hung K. Nguyen, Massimiliano Labardi, Simone Capaccioli, Pierangelo Rolla, Mauro Lucchesi, Daniele Prevosto
Publikováno v:
Macromolecules
44 (2011): 6588–6593. doi:10.1021/ma200440z
info:cnr-pdr/source/autori:Nguyen, Hung K.; Prevosto, Daniele; Labardi, Massimiliano; Capaccioli, Simone; Lucchesi, Mauro; Rolla, Pierangelo/titolo:Effect of Confinement on Structural Relaxation in Ultrathin Polymer Films Investigated by Local Dielectric Spectroscopy/doi:10.1021%2Fma200440z/rivista:Macromolecules (Print)/anno:2011/pagina_da:6588/pagina_a:6593/intervallo_pagine:6588–6593/volume:44
44 (2011): 6588.
info:cnr-pdr/source/autori:Nguyen, H.; Prevosto, D.; Labardi, M.; Capaccioli, S.; Lucchesi, M.; Rolla, P./titolo:Effect of Confinement on Structural Relaxation in Ultrathin Polymer Films Investigated by Local Dielectric Spectroscopy/doi:/rivista:Macromolecules (Print)/anno:2011/pagina_da:6588/pagina_a:/intervallo_pagine:6588/volume:44
44 (2011): 6588–6593. doi:10.1021/ma200440z
info:cnr-pdr/source/autori:Nguyen, Hung K.; Prevosto, Daniele; Labardi, Massimiliano; Capaccioli, Simone; Lucchesi, Mauro; Rolla, Pierangelo/titolo:Effect of Confinement on Structural Relaxation in Ultrathin Polymer Films Investigated by Local Dielectric Spectroscopy/doi:10.1021%2Fma200440z/rivista:Macromolecules (Print)/anno:2011/pagina_da:6588/pagina_a:6593/intervallo_pagine:6588–6593/volume:44
44 (2011): 6588.
info:cnr-pdr/source/autori:Nguyen, H.; Prevosto, D.; Labardi, M.; Capaccioli, S.; Lucchesi, M.; Rolla, P./titolo:Effect of Confinement on Structural Relaxation in Ultrathin Polymer Films Investigated by Local Dielectric Spectroscopy/doi:/rivista:Macromolecules (Print)/anno:2011/pagina_da:6588/pagina_a:/intervallo_pagine:6588/volume:44
The effect of confinement on structural relaxation in ultrathin poly(vinyl acetate) films has been studied by local dielectric spectroscopy. This scanning probe method allows the investigation of dielectric relaxation at nanometer scale of supported
Publikováno v:
Journal of Non-Crystalline Solids. 357:251-257
The present paper shows, by means of broadband dielectric measurements, that the primary α- and the secondary Johari–Goldstein (JG) β-processes in binary mixtures are strongly correlated. This occurs for different polar rigid probes dissolved in
Publikováno v:
Journal of non-crystalline solids 355 (2009): 705–711.
info:cnr-pdr/source/autori:Prevosto, D.; Capaccioli, S.; Lucchesi, M.; Rolla, P.A.; Ngai, K.L./titolo:Does the entropy and volume dependence of the structural alpha-relaxation originate from the JohariGoldstein beta-relaxation?/doi:/rivista:Journal of non-crystalline solids/anno:2009/pagina_da:705/pagina_a:711/intervallo_pagine:705–711/volume:355
info:cnr-pdr/source/autori:Prevosto, D.; Capaccioli, S.; Lucchesi, M.; Rolla, P.A.; Ngai, K.L./titolo:Does the entropy and volume dependence of the structural alpha-relaxation originate from the JohariGoldstein beta-relaxation?/doi:/rivista:Journal of non-crystalline solids/anno:2009/pagina_da:705/pagina_a:711/intervallo_pagine:705–711/volume:355
Conventional theories of glass transition are focussed on reproducing the thermodynamic and dynamic properties of the structural α-process. However, in the last decade a class of secondary relaxations, called the Johari–Goldstein (JG) β-relaxatio
Publikováno v:
Philosophical Magazine
Philosophical Magazine, Taylor & Francis, 2007, 87 (3-5), pp.643-650. ⟨10.1080/14786430600986111⟩
87 (2007): 643–650.
info:cnr-pdr/source/autori:Prevosto, D; Kessairi, K; Capaccioli, S; Lucchesi, M; Rolla, PA/titolo:Excess wing and Johari-Goldstein relaxation in binary mixtures of glass formers/doi:/rivista:/anno:2007/pagina_da:643/pagina_a:650/intervallo_pagine:643–650/volume:87
Philosophical Magazine, Taylor & Francis, 2007, 87 (3-5), pp.643-650. ⟨10.1080/14786430600986111⟩
87 (2007): 643–650.
info:cnr-pdr/source/autori:Prevosto, D; Kessairi, K; Capaccioli, S; Lucchesi, M; Rolla, PA/titolo:Excess wing and Johari-Goldstein relaxation in binary mixtures of glass formers/doi:/rivista:/anno:2007/pagina_da:643/pagina_a:650/intervallo_pagine:643–650/volume:87
International audience; Dielectric loss spectra of pure quinaldine and tert-butylpyridine and their mixtures with tri-styrene are presented. The pure systems present an excess wing and no secondary peaks in the temperature interval from above to well
Autor:
Mauro Lucchesi, Massimiliano Labardi
Publikováno v:
Measurement science & technology
26 (2015): 035101. doi:10.1088/0957-0233/26/3/035101
info:cnr-pdr/source/autori:Labardi M, Lucchesi M/titolo:Split Quartz Tuning Fork Sensors for Enhanced Sensitivity Force Detection/doi:10.1088%2F0957-0233%2F26%2F3%2F035101/rivista:Measurement science & technology (Print)/anno:2015/pagina_da:035101/pagina_a:/intervallo_pagine:035101/volume:26
26 (2015): 035101. doi:10.1088/0957-0233/26/3/035101
info:cnr-pdr/source/autori:Labardi M, Lucchesi M/titolo:Split Quartz Tuning Fork Sensors for Enhanced Sensitivity Force Detection/doi:10.1088%2F0957-0233%2F26%2F3%2F035101/rivista:Measurement science & technology (Print)/anno:2015/pagina_da:035101/pagina_a:/intervallo_pagine:035101/volume:26
Quartz tuning forks (TFs) are often employed in dynamic-mode atomic force microscopy (AFM) as piezoelectric force sensors, to replace the usual AFM microcantilevers, especially in ultra-high vacuum or cryogenic environments. A sharp tip is attached t
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b38e0a50088318bafe7298fe54e37a76
https://publications.cnr.it/doc/296172
https://publications.cnr.it/doc/296172
Publikováno v:
Non-equilibrium Phenomena in Confined Soft Matter ISBN: 9783319219479
Non-equilibrium Phenomena in Confined Soft Matter, 2015
info:cnr-pdr/source/autori:Nguyen, H.K.; Prevosto, D.; Labardi, M.; Capaccioli, S.; Lucchesi, M./titolo:Irreversibly Adsorbed Layer in Supported Ultrathin Polymer Film Investigated by Local Dielectric Spectroscopy/titolo_volume:Non-equilibrium Phenomena in Confined Soft Matter/curatori_volume:/editore:/anno:2015
Non-equilibrium Phenomena in Confined Soft Matter, 2015
info:cnr-pdr/source/autori:Nguyen, H.K.; Prevosto, D.; Labardi, M.; Capaccioli, S.; Lucchesi, M./titolo:Irreversibly Adsorbed Layer in Supported Ultrathin Polymer Film Investigated by Local Dielectric Spectroscopy/titolo_volume:Non-equilibrium Phenomena in Confined Soft Matter/curatori_volume:/editore:/anno:2015
Polymer chains can adsorb onto a solid substrate without the formation of chemical bonds. Because this mechanism of adsorption is driven by the weak dipolar interactions and requires simultaneous pinning of many repeating units of the chain, its kine
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::7830f972e66aeb43f41b4e73f5133b4f
http://hdl.handle.net/11568/767027
http://hdl.handle.net/11568/767027
Publikováno v:
Journal of non-crystalline solids 352 (2006): 4920–4927.
info:cnr-pdr/source/autori:Lucchesi, M; Dominjon, A; Capaccioli, S; Prevosto, D; Rolla, PA/titolo:Polarization fluctuations near the glass transition/doi:/rivista:Journal of non-crystalline solids/anno:2006/pagina_da:4920/pagina_a:4927/intervallo_pagine:4920–4927/volume:352
info:cnr-pdr/source/autori:Lucchesi, M; Dominjon, A; Capaccioli, S; Prevosto, D; Rolla, PA/titolo:Polarization fluctuations near the glass transition/doi:/rivista:Journal of non-crystalline solids/anno:2006/pagina_da:4920/pagina_a:4927/intervallo_pagine:4920–4927/volume:352
Measurements of polarization fluctuations were performed for an epoxy glass former. The voltage noise produced by polarization fluctuations of the sample filling a capacitor was acquired via a home-made very high input impedance current-voltage conve
Autor:
Riccardo Casalini, Simone Capaccioli, Pierangelo Rolla, K. L. Ngai, Mauro Lucchesi, Daniele Prevosto
Publikováno v:
Journal of Non-Crystalline Solids. 351:2643-2651
The different nature of multiple secondary (β- and γ-) relaxations for the glass-formers dipropyleneglycol-dibenzoate and benzoin-isobutylether has been investigated by varying temperature and pressure in the equilibrium liquid and glassy states, a
Publikováno v:
Journal of Physics: Condensed Matter. 16:6597-6608
We analyse the slowing down of the structural relaxation dynamics of polymers in terms of the Adam and Gibbs theory. We consider a previously derived general relation between the configurational and the excess entropy, which was used to derive an ana