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Specific interactions in ternary system quaternized polysulfone/mixed solvent
Author(s) -
Filimon Anca,
Avram Ecaterina,
Ioan Silvia
Publication year - 2009
Publication title -
polymer engineering and science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.503
H-Index - 111
eISSN - 1548-2634
pISSN - 0032-3888
DOI - 10.1002/pen.21209
Subject(s) - polysulfone , ternary operation , solvent , materials science , ternary numeral system , thermodynamics , proton , ionic bonding , hydrogen bond , flory–huggins solution theory , acceptor , chemistry , polymer chemistry , organic chemistry , polymer , molecule , composite material , physics , ion , quantum mechanics , computer science , programming language , condensed matter physics
Theoretical and experimental aspects on the specific interactions developed via electrostatic interactions and hydrogen‐bonding in a ternary system formed of a proton‐donor solvent ( N,N ‐dimethylformamide or methanol), a proton‐acceptor solvent (water), and a quaternized polysulfone with various contents of ionic chlorine, which indicates a proton‐acceptor character, are investigated. Thus, the interactions of the ternary systems are corrected on the basis of the association phenomena defined through association constants. Numerical values for these constants were evaluated as a function of the system composition, by mathematical simulations for an accurate adjustment of preferential adsorption, determined by the Flory–Huggins–Pouchly theoretical approach applied to the experimental data. POLYM. ENG. SCI., 2009. © 2008 Society of Plastics Engineers