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Polymer miscibility in mixed organic liquids having acid‐base interaction—a modified two‐dimensional approach
Author(s) -
Chen ShowAn,
Lai WenJen
Publication year - 1979
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.1979.070230202
Subject(s) - miscibility , polymer , solvent , solubility , dispersion (optics) , base (topology) , polar , flory–huggins solution theory , hydrogen bond , polymer chemistry , materials science , london dispersion force , hildebrand solubility parameter , chemistry , chemical engineering , thermodynamics , organic chemistry , molecule , van der waals force , physics , mathematical analysis , mathematics , astronomy , optics , engineering
A mixture of two organic liquids, each of which is a solvent for a given polymer, may become a nonsolvent mixture, if there is strong acid‐base interaction between the two solvents. Experimental results of such cases are presented for five polymers. These results are then correlated with the proposed modified form of the two‐dimensional approach. In the modification, an additional term for taking into account the acid‐base interaction is added to the expression for the hydrogen‐bonding solubility parameter of the liquid mixture; the dispersion forces and polar interactions are assumed to be undisturbed by the occurrence of the acid‐base interaction.