Swelling and plasticization of PDMS and PTMSP in methanol and dimethyl carbonate vapors and liquids: Volume, mechanical properties, Raman spectra
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60461373%3A22310%2F19%3A43917957" target="_blank" >RIV/60461373:22310/19:43917957 - isvavai.cz</a>
Alternative codes found
RIV/60461373:22340/19:43917957
Result on the web
<a href="https://www.sciencedirect.com/science/article/pii/S0032386119311449?via%3Dihub#bib25" target="_blank" >https://www.sciencedirect.com/science/article/pii/S0032386119311449?via%3Dihub#bib25</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1016/j.polymer.2019.122140" target="_blank" >10.1016/j.polymer.2019.122140</a>
Alternative languages
Result language
angličtina
Original language name
Swelling and plasticization of PDMS and PTMSP in methanol and dimethyl carbonate vapors and liquids: Volume, mechanical properties, Raman spectra
Original language description
The swelling and plasticization of polydimethylsiloxane (PDMS), a rubbery polymeric network, and poly[(trimethylsilyl) propyne] (PTMSP), a glassy polymer, in methanol and dimethyl carbonate (DMC) vapors (a) and liquids (b) was studied using visible-light microscopy (ad a), dynamic mechanical analysis (DMA, ad a) and confocal Raman microscopy (ad b). The properties of swollen PDMS were found to be as expected: Volume swelling followed volume additivity and swelling in mixed vapors was predictable from single component swelling data, elastic moduli followed the scaling law and Raman spectra of pure and swollen PDMS were indistinguishable. On the contrary, swollen PTMSP showed pronouncedly lower volume changes than those expected from volume additivity and non-predictable swelling in mixed vapors, preferential saturation of the nonequilibrium packing defects of the polymer, an initial plateau for the storage modulus and pronounced spectral changes when swollen with the liquids. The initially rigid physical structure of PTMSP was found to be relaxed when the concentration of the volatile compound in the polymer exceeded the capacity of the first adsorption layer, which is one of the parameters of the Guggenheim, Anderson, de Boer (GAB) model of multilayer adsorption. Hence, the general mechanism for sorption of volatile compounds in glassy polymers is likely adsorption and gradual physical relaxation.
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
Result was created during the realization of more than one project. More information in the Projects tab.
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)
Others
Publication year
2019
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Polymer
ISSN
0032-3861
e-ISSN
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Volume of the periodical
188
Issue of the periodical within the volume
188
Country of publishing house
GB - UNITED KINGDOM
Number of pages
11
Pages from-to
122140
UT code for WoS article
000513003200030
EID of the result in the Scopus database
2-s2.0-85077147900