Premium
Gas sorption in substituted polyacetylenes
Author(s) -
Bondar Valeri,
Alentiev Alexander,
Masuda Toshio,
Yampolskii Yuri
Publication year - 1997
Publication title -
macromolecular chemistry and physics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.57
H-Index - 112
eISSN - 1521-3935
pISSN - 1022-1352
DOI - 10.1002/macp.1997.021980601
Subject(s) - sorption , acetylene , propyne , solubility , chemistry , trimethylsilyl , polymer chemistry , langmuir , organic chemistry , adsorption
Abstract Sorption of several gases (He, N 2 , Ar, CH 4 , CO 2 , C 2 H 6 ) was measured in an extended pressure range (up to 100 at m) in two glassy polyacetylenes: poly[1‐phenyl‐2‐( p‐tert ‐butylphenyl)acetylene] and samples of poly[1‐(trimethylsilyl)‐1‐propyne] (PTMSP), which were partly oxidized during long term storage in the ambient atmosphere. Sorption isotherms are concave to the pressure axis and can be described by the dual mode sorption model. Both polyacetylenes are distinguished by relatively large Langmuir sorption capacity parameters C ′ H . However, the C ′ H values and solubility coefficients are significantly lower than those of fresh PTMSP.