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Polymer aqueous solutions as quenching media. II. Ethylene oxide–propylene oxide copolymers
Author(s) -
Louai Abderrahim,
Pollet Gilbert,
Francois Jeanne,
Moreaux Francois
Publication year - 1991
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.1991.070431202
Subject(s) - ethylene oxide , propylene oxide , aqueous solution , polymer , copolymer , materials science , oxide , cloud point , quenching (fluorescence) , chemical engineering , polymer chemistry , precipitation , lower critical solution temperature , chemistry , composite material , metallurgy , physics , quantum mechanics , meteorology , engineering , fluorescence
The cooling power of aqueous solutions of ethylene oxide‐propylene oxide copolymers are studied with a silver standard sample by using two apparatuses quench with injection and quench with agitation. For temperature T>400°C, the viscosity plays the predominant role; for T<400°C, the cooling is controlled by the polymer precipitation and the cooling rate decreases by lowering the cloud point of the polymer solution. This work demonstrates the possibility of adjusting the cooling curves by taking into account the thermodynamical properties of the polymer.