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Estimation of solubility parameter components of solutes and polymers using heat of vaporization and heat of sorption of solutes
Author(s) -
Huang JanChan
Publication year - 2009
Publication title -
journal of applied polymer science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.575
H-Index - 166
eISSN - 1097-4628
pISSN - 0021-8995
DOI - 10.1002/app.29748
Subject(s) - solubility , hildebrand solubility parameter , sorption , thermodynamics , enthalpy of vaporization , polymer , vaporization , materials science , chemistry , polymer chemistry , organic chemistry , enthalpy , adsorption , physics
In a recent study, a two‐dimensional solubility parameter model was used to correlate the heat of solution for solutes ranging from n ‐alkanes to alcohols, dissolved in isotatic polypropylene (PP), poly(ethyl ethylene) (PEE), and poly(dimethylsiloxane) (PDMS). When literature data of solubility parameter components of solutes were used, the correlation had some scattering for solutes with low values of cohesive energy density. In this study, the components of solubility parameters of solutes and polymers were estimated from cohesive energy and heat of sorption of solutes. Good correlation was obtained for the specific heat of sorption (Δ U sorp / V ) for solutes ranging from n ‐alkanes to alcohols, and PDMS had a polar component as previously estimated. Free volume effect in solution process may be the source of a small systematic deviation from the model. © 2009 Wiley Periodicals, Inc. J Appl Polym Sci, 2009