Sorption of vapors in methanol soaked and in thermally annealed Matrimid® films
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60461373%3A22310%2F23%3A43927106" target="_blank" >RIV/60461373:22310/23:43927106 - isvavai.cz</a>
Alternative codes found
RIV/60461373:22340/23:43927106
Result on the web
<a href="https://doi.org/10.1002/app.54629" target="_blank" >https://doi.org/10.1002/app.54629</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1002/app.54629" target="_blank" >10.1002/app.54629</a>
Alternative languages
Result language
angličtina
Original language name
Sorption of vapors in methanol soaked and in thermally annealed Matrimid® films
Original language description
Matrimid® shows well separated sub-glass transitions and substantial entrapmentof dichloromethane (DCM) in the solution-cast films. The entrapped DCM wasremoved by soaking the polymer in the excess of liquid methanol followed eitherby thermal annealing (vacuum at 200°C) or by the desorption at mild conditions.These physical treatments influenced the sorption kinetics and even the sorptionisotherms for vapors of DCM, methanol (MeOH) and acetonitrile (MeCN) at35.0C. The sorption isotherms for the thermally annealed Matrimid® wereshifted to those for the methanol-soaked Matrimid® upon its exposure to sufficientlysaturated vapors. The physical treatments changed the β sub-glass transitionof the polymer, and did not cause changes in the chemical composition andmicrostructure as sensed using ATR-FTIR and SEM, respectively. Relaxation ofthe annealed Matrimid® was achieved by its soaking in liquid MeOH and by theexposure to vapors, their threshold saturation followed the same order as diffusivity:MeOH > MeCN > DCM. Although methanol appears the least effective agentto induce the relaxation of Matrimid®, it diffuses in and desorbs from the polymerreadily. Liquid MeOH and its vapor thus appear the media of choice for causingthe relaxation and removal of entrapped solvents from Matrimid®.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
10404 - Polymer science
Result continuities
Project
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Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Others
Publication year
2023
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 Applied Polymer Science
ISSN
0021-8995
e-ISSN
1097-4628
Volume of the periodical
140
Issue of the periodical within the volume
44
Country of publishing house
US - UNITED STATES
Number of pages
10
Pages from-to
"e54629"
UT code for WoS article
001104896700009
EID of the result in the Scopus database
2-s2.0-85169169313