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Solvent effect on the action of ethylene–vinyl acetate copolymer pour point depressant in waxy solutions
Author(s) -
Qian J. W.,
Qi G. R.,
Xu Y. L.,
Yang S. L.
Publication year - 1996
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/(sici)1097-4628(19960606)60:10<1575::aid-app8>3.0.co;2-g
Subject(s) - copolymer , vinyl acetate , wax , freezing point depression , ethylene vinyl acetate , pour point , solvent , depressant , crystallization , materials science , polymer chemistry , compatibility (geochemistry) , ethylene , chemical engineering , chemistry , organic chemistry , polymer science , freezing point , composite material , thermodynamics , polymer , catalysis , engineering , medicine , physics , pharmacology
The flowability and thermal behavior of waxy solutions with and without an ethylene–vinyl acetate copolymer (EVA) have been studied. The drastic changings of pour point depression (Δ T pp ) and the crystallization in four waxy solutions were observed. These changes were linear with the U‐interaction parameters between EVA and wax in different solvents, suggesting that the efficiency of EVA pour point depressent depends on its compatibility with wax, which is affected by solvent. © 1996 John Wiley & Sons, Inc.