Effect of Preferential Solvation of Polymer Chains on Vapor-Pressure Osmometry Results. Computer Simulation Study.

0488628 - ÚCHP 2019 RIV GB eng J - Journal Article
Svoboda, Martin - Lísal, Martin - Limpouchová, Z. - Procházka, Karel
Effect of Preferential Solvation of Polymer Chains on Vapor-Pressure Osmometry Results. Computer Simulation Study.
International Journal of Polymer Analysis and Characterization. Roč. 23, č. 3 (2018), s. 244-251. ISSN 1023-666X. E-ISSN 1563-5341
R&D Projects: GA ČR GA15-19542S
Institutional support: RVO:67985858
Keywords : vapor-pressure osmometry * simulation * solvatation
OECD category: Physical chemistry
Impact factor: 1.426, year: 2018

Preferential solvation of polymer chains by molecules of the thermodynamically better component of the solvent mixture is a general phenomenon which affects properties of dissolved chains and has to be taken into account in the interpretation of results of methods for analysis and characterization of polymers. We have investigated (i) the effect of preferential solvation on vapor-pressure osmometry results in mixed solvents close to theta-conditions and (ii) the danger of formation of associates by coarse-grained computer simulations. The study shows that both effects are negligible and the measurements in mixed solvents can be safely performed.
Permanent Link: http://hdl.handle.net/11104/0283478