Dilute solution properties of poly(benzyl methacrylate) in ionic liquids
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61389013%3A_____%2F20%3A00522173" target="_blank" >RIV/61389013:_____/20:00522173 - isvavai.cz</a>
Result on the web
<a href="https://pubs.acs.org/doi/10.1021/acs.macromol.9b02618" target="_blank" >https://pubs.acs.org/doi/10.1021/acs.macromol.9b02618</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1021/acs.macromol.9b02618" target="_blank" >10.1021/acs.macromol.9b02618</a>
Alternative languages
Result language
angličtina
Original language name
Dilute solution properties of poly(benzyl methacrylate) in ionic liquids
Original language description
The static and dynamic properties of a range of molecular weights (2 × 104 to 1.6 × 105 g/mol) of poly(benzyl methacrylate) have been assessed in four different imidazolium- and pyrrolidinium-based ionic liquids over a wide temperature range (27–155 °C), primarily using light scattering techniques. All four systems exhibit lower critical solution temperature phase behavior. The relevant structural, dynamic, and thermodynamic parameters were examined as a function of concentration, temperature, and molecular weight. Some interesting observations were revealed. The phase boundaries suggest a shift of the critical composition toward the polymer-rich region, in contrast to the low critical concentrations for polymers commonly observed in polymer solutions. Surprisingly, the second virial coefficient (A2) remains positive, even at temperatures close to phase separation, where A2 < 0 is anticipated. Furthermore, A2 also shows stronger dependence on molecular weight than commonly observed for polymers in good solvents. On the dynamic side, the diffusion virial coefficients (kd) remained positive over the given temperature range, further corroborating the apparent good solvent behavior of A2. The excluded volume exponents (ν ≈ 0.53–0.54) obtained from the dependence of hydrodynamic radii on molecular weight also indicate good solvent characteristics.
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
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Others
Publication year
2020
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Macromolecules
ISSN
0024-9297
e-ISSN
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Volume of the periodical
53
Issue of the periodical within the volume
3
Country of publishing house
US - UNITED STATES
Number of pages
10
Pages from-to
885-894
UT code for WoS article
000513299100013
EID of the result in the Scopus database
2-s2.0-85079074696