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Gas sorption in semicrystalline rubbery polymers revisited
Author(s) -
LópezGonzález Mar,
Compañ Vicente,
Riande Evaristo
Publication year - 2007
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.26134
Subject(s) - crystallinity , solubility , sorption , polymer , materials science , amorphous solid , low density polyethylene , polymer chemistry , chemical engineering , ethylene , thermodynamics , composite material , chemistry , organic chemistry , adsorption , physics , catalysis , engineering
This work reports the solubility of carbon dioxide, ethylene and propylene in low density polyethylenes with densities lying in the range 0.870–0.940 g/cm 3 . The sorption behavior is studied as a function of the crystallinity in terms of the Flory‐Huggins theory of polymer solutions. For each gas, both the Henry's solubility constant referred to the amorphous phase of the films and its temperature dependence do not change significantly with the crystallinity of the LDPE films. The enthalpic polymer–gas interaction changes with the nature of the gases, but not with the crystallinity of the films. © 2007 Wiley Periodicals, Inc. J Appl Polym Sci 2007