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Solubility of isobutane in two high‐density polyethylene polymer fluffs
Author(s) -
Parrish W. M. R.
Publication year - 1981
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.1981.070260715
Subject(s) - isobutane , high density polyethylene , solubility , polyethylene , polymer , desorption , materials science , sorption , vapor pressure , thermodynamics , polymer chemistry , chemistry , analytical chemistry (journal) , organic chemistry , physics , adsorption , catalysis
Abstract Solubility and rate of desorption of isobutane vapor in high‐density polyethylene (HDPE) polymer fluff and a HDPE‐hexene‐1 copolymer fluff for isotherms between 65.5 and 93.3°C are reported. The data were obtained for pressures to near the vapor pressure of isobutane. Solubilities were correlated using Henry's law, Flory–Huggins theory, and weight fraction activity coefficients. The last approach gave the best correlation of data over the entire temperature and pressure range. The estimated rate of sorption of isobutane is 1.5 × 10 −4 mol iC 4 H 10/g fluff/bar/min over the range studied.