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Volume and Enthalpy Relaxation Response after Combined Temperature History in Polycarbonate

The result's identifiers

  • Result code in IS VaVaI

    <a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F70883521%3A28110%2F05%3A63503746" target="_blank" >RIV/70883521:28110/05:63503746 - isvavai.cz</a>

  • Result on the web

  • DOI - Digital Object Identifier

Alternative languages

  • Result language

    angličtina

  • Original language name

    Volume and Enthalpy Relaxation Response after Combined Temperature History in Polycarbonate

  • Original language description

    Volume and enthalpy relaxation in polycarbonate subjected to double temperature jumps in the Tg region has been analysed. It concerns both initial T down-jump from equilibrium above Tg to consolidation temperature below Tg and final T up-jump to relaxation temperature, also below Tg. The measured H and V data after T up-jump were compared with respect to aging time calculating (dH/dV) ratio denoted as aging bulk modulus, Ka. According this new methodology H and V relaxation response after T up-jump demonstrates differences in relaxation responses.

  • Czech name

    Objemová a entalpická relaxace polykarbonátu

  • Czech description

    Tento článek srovnává odezvy objemové a entalpické relaxace v polykarbonátu pod teplotou skelného přechodu, Tg. Iniciciace relaxace byla prováděna metodou teplotního skoku pod Tg, zde materiál relaxoval a poté byl proveden teplotní skok směrem vzhůru nateplotu rovněž pod Tg. Objemová a entalpická měření byla porovnávána poměru (dh/dv) nazývaného objemový relaxační modul. Tato nová metodologie srovnání objemové a entalické relaxace poukázala na rozdíly v obou sledovaných veličinách.

Classification

  • Type

    J<sub>x</sub> - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)

  • CEP classification

    CD - Macromolecular chemistry

  • OECD FORD branch

Result continuities

  • Project

    <a href="/en/project/GA106%2F02%2F1580" target="_blank" >GA106/02/1580: Physical aging of polycarbonates used for compact disc</a><br>

  • Continuities

    Z - Vyzkumny zamer (s odkazem do CEZ)

Others

  • Publication year

    2005

  • Confidentiality

    S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Data specific for result type

  • Name of the periodical

    Journal of Thermal Analysis and Calorimetry

  • ISSN

    1388-6150

  • e-ISSN

  • Volume of the periodical

    80

  • Issue of the periodical within the volume

    1

  • Country of publishing house

    US - UNITED STATES

  • Number of pages

    5

  • Pages from-to

    181-185

  • UT code for WoS article

  • EID of the result in the Scopus database