Premium
Search for a model polymer blend
Author(s) -
Balsara N. P.,
Lefebvre A. A.,
Lee J. H.,
Lin C. C.,
Hammouda B.
Publication year - 1998
Publication title -
aiche journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.958
H-Index - 167
eISSN - 1547-5905
pISSN - 0001-1541
DOI - 10.1002/aic.690441118
Subject(s) - flory–huggins solution theory , thermodynamics , polymer , polymer blend , binary number , neutron scattering , materials science , range (aeronautics) , scattering , polymer chemistry , copolymer , physics , mathematics , composite material , optics , arithmetic
The thermodynamics of binary and multicomponent mixtures comprising polymethyl‐butylene, polyethylbutylene, andpolymethylbutylene‐block‐polyethylbutylene was studied by small‐angle neutron scattering. The Flory‐Higgins interactions parameter, deduced from these measurements, was independent of blend composition, as well as molecular weight and molecular architecture of the components, over the accessible temperature (27–201°C) and pressure (0.01–0.86 kbar) range. At temperatures above 130°C, the interaction parameter becomes independent of pressure. These findings are compared with previous experimental studies on the thermodynamics of polymer blends. To our knowledge, this level of agreement with the Flory‐Huggins theory has not been seen in any other polymer blend.