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
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DOI - Digital Object Identifier
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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
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Czech description
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Classification
Type
D - Article in proceedings
CEP classification
CI - Industrial chemistry and chemical engineering
OECD FORD branch
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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
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e-ISSN
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Number of pages
11
Pages from-to
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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
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