Počet záznamů: 1  

Conformational Behavior of Polymer Chains of Different Architectures in Strongly Endothermic Solvent Mixtures: Specific Solvation Effects.

  1. 1.
    SYSNO ASEP0484240
    Druh ASEPJ - Článek v odborném periodiku
    Zařazení RIVJ - Článek v odborném periodiku
    Poddruh JČlánek ve WOS
    NázevConformational Behavior of Polymer Chains of Different Architectures in Strongly Endothermic Solvent Mixtures: Specific Solvation Effects.
    Tvůrce(i) Suchá, L. (CZ)
    Limpouchová, Z. (CZ)
    Procházka, Karel (UCHP-M)
    Zdroj.dok.Colloid and Polymer Science - ISSN 0303-402X
    Roč. 295, č. 8 (2017), s. 1391-1403
    Poč.str.13 s.
    Jazyk dok.eng - angličtina
    Země vyd.US - Spojené státy americké
    Klíč. slovacononsolvency ; preferential solvation ; star polymer
    Vědní obor RIVCF - Fyzikální chemie a teoretická chemie
    Obor OECDPhysical chemistry
    CEPGA15-19542S GA ČR - Grantová agentura ČR
    Institucionální podporaUCHP-M - RVO:67985858
    UT WOS000406174700014
    EID SCOPUS85018467216
    DOI10.1007/s00396-017-4083-z
    AnotacePreferential solvation of polymer chains by the thermodynamically better component in mixed solvent is a general phenomenon which has been amply studied in systems of miscible solvent components. In strongly endothermic mixtures of partially miscible solvent components, it provokes transient contraction of polymer chains and can lead to cononsolvency, which consists in the fact that a mixture of two good solvents becomes a poor solvent. It has been studied for a few polymers and solvent mixtures, but so far, there is not a consensus concerning the principles of this behavior at the molecular level. We performed a series of coarse-grained dissipative particle dynamic simulations aimed at broadening the knowledge of preferential solvation in endothermic mixtures. The study shows that the cononsolvency can be partially explained by general thermodynamic arguments at coarse-grained the mean-field level, but the model ignoring specific interactions fails to describe all details correctly.
    PracovištěÚstav chemických procesů
    KontaktEva Jirsová, jirsova@icpf.cas.cz, Tel.: 220 390 227
    Rok sběru2018
Počet záznamů: 1