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TRANSPORT OF PENETRANTS IN SEMI-CRYSTALINE LLDPE STUDIED BY PRESSURE-DECAY METHOD

The result's identifiers

  • Result code in IS VaVaI

    <a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60461373%3A22340%2F10%3A00023232" target="_blank" >RIV/60461373:22340/10:00023232 - isvavai.cz</a>

  • Result on the web

  • DOI - Digital Object Identifier

Alternative languages

  • Result language

    angličtina

  • Original language name

    TRANSPORT OF PENETRANTS IN SEMI-CRYSTALINE LLDPE STUDIED BY PRESSURE-DECAY METHOD

  • Original language description

    In the case of semi-crystalline polymers, such as LLDPE, the equilibrium sorption in the polymer-penetrant system can?t be described as the simple sorption of penetrant in the amorphous polymer phase, because the swelling of amorphous polymer is elastically constrained by the surrounding crystallites. This constraining effect is the source of a large discrepancy between measured sorption data and theoretical predictions. The fraction of constrained segments of amorphous polymer has been determined fromour previous gravimetric measurements in the apparatus utilizing magnetic suspension balance. The constraining effect is affecting also diffusion transport of penetrants in LLDPE. Therefore we constructed and are going to introduce a new pressure-decay apparatus capable to measure diffusion and sorption both above and below the polymer melting temperature. Results of these measurements are going to be explained and processed. However, these measurements provide us with the combined effec

  • Czech name

  • Czech description

Classification

  • Type

    D - Article in proceedings

  • CEP classification

    CI - Industrial chemistry and chemical engineering

  • OECD FORD branch

Result continuities

  • Project

    Result was created during the realization of more than one project. More information in the Projects tab.

  • Continuities

    Z - Vyzkumny zamer (s odkazem do CEZ)<br>S - Specificky vyzkum na vysokych skolach

Others

  • Publication year

    2010

  • Confidentiality

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

Data specific for result type

  • Article name in the collection

    Proceedings of the 37th International Conference of Slovak Society of Chemical Engineering, 2010

  • ISBN

    978-80-227-3290-1

  • ISSN

  • e-ISSN

  • Number of pages

    11

  • Pages from-to

  • Publisher name

    Slovak Society of Chemical Engineering

  • Place of publication

    Bratislava

  • Event location

    Tatranské Matliare, Slovensko

  • Event date

    Jan 1, 2010

  • Type of event by nationality

    WRD - Celosvětová akce

  • UT code for WoS article