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https://olympias.lib.uoi.gr/jspui/handle/123456789/16288Full metadata record
| DC Field | Value | Language |
|---|---|---|
| dc.contributor.author | Mpoukouvalas, K. | en |
| dc.contributor.author | Gomopoulos, N. | en |
| dc.contributor.author | FloudaS, G. | en |
| dc.contributor.author | Herrmann, C. | en |
| dc.contributor.author | Hanewald, A. | en |
| dc.contributor.author | Best, A. | en |
| dc.date.accessioned | 2015-11-24T18:29:43Z | - |
| dc.date.available | 2015-11-24T18:29:43Z | - |
| dc.identifier.issn | 0032-3861 | - |
| dc.identifier.uri | https://olympias.lib.uoi.gr/jspui/handle/123456789/16288 | - |
| dc.rights | Default Licence | - |
| dc.subject | bisphenol-a-polycarbonate | en |
| dc.subject | glass transition | en |
| dc.subject | pressure dependence | en |
| dc.subject | hydrostatic-pressure | en |
| dc.subject | dielectric-relaxation | en |
| dc.subject | lifetime spectroscopy | en |
| dc.subject | supercooled liquids | en |
| dc.subject | neutron-scattering | en |
| dc.subject | molecular motions | en |
| dc.subject | glass-transition | en |
| dc.subject | free-volume | en |
| dc.subject | temperature | en |
| dc.subject | dependence | en |
| dc.title | Effect of pressure on the segmental dynamics of bisphenol-A-polycarbonate | en |
| heal.type | journalArticle | - |
| heal.type.en | Journal article | en |
| heal.type.el | Άρθρο Περιοδικού | el |
| heal.identifier.primary | DOI 10.1016/j.polymer.2006.05.068 | - |
| heal.identifier.secondary | <Go to ISI>://000241421300033 | - |
| heal.identifier.secondary | http://ac.els-cdn.com/S0032386106006914/1-s2.0-S0032386106006914-main.pdf?_tid=1e92676267ebe2e20a7dd9237a17a211&acdnat=1334220514_e71628834530a7eee015b8db519cbfb7 | - |
| heal.language | en | - |
| heal.access | campus | - |
| heal.recordProvider | Πανεπιστήμιο Ιωαννίνων. Σχολή Επιστημών και Τεχνολογιών. Τμήμα Βιολογικών Εφαρμογών και Τεχνολογιών | el |
| heal.publicationDate | 2006 | - |
| heal.abstract | The segmental dynamics of bisphenol-A-polycarbonate (BPA-PC) are studied as a function of temperature (in the range from 143 to 473 K) and pressure (0.1-300 MPa) within the frequency range from 3 x 10(-3) to 1 X 10(6) Hz using dielectric spectroscopy aiming at extracting the more relevant parameter associated with the liquid-to-glass transition. Rheological measurements are also made in the temperature range from 408 to 513 K for comparison. The dynamic results coupled with the equation of state reveal that both density and thermal energy control the segmental dynamics with density being the most important variable in the vicinity of the transition. This is documented by independent estimates of the value of the dynamic ratio E-v*/H* (similar to 0.44). This low value of the dynamic ratio is discussed in terms of the packing irregularities and large monomer volume of BPA-PC. In addition, the pressure coefficient of T-g (dT(g)/dP similar to 0.52 K/MPa) is one of the highest for a polymeric substance. (c) 2006 Elsevier Ltd. All rights reserved. | en |
| heal.journalName | Polymer | en |
| heal.journalType | peer reviewed | - |
| heal.fullTextAvailability | TRUE | - |
| Appears in Collections: | Άρθρα σε επιστημονικά περιοδικά ( Ανοικτά) | |
Files in This Item:
| File | Description | Size | Format | |
|---|---|---|---|---|
| Mpoukouvalas-2006-Effect of pressure o.pdf | 588.07 kB | Adobe PDF | View/Open Request a copy |
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