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Characterization of Na ion‐sensitive solvent polymeric membranes based on a neutral carrier
Author(s) -
Maruizumi Takuya,
Miyagi Hiroyuki,
Takata Yoshinori,
Kobayashi Teruaki
Publication year - 1985
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.1985.070300204
Subject(s) - membrane , diffusion , solvent , ion , materials science , phase (matter) , characterization (materials science) , analytical chemistry (journal) , carbon 13 nmr , polymer , chemical engineering , chemistry , polymer chemistry , organic chemistry , nanotechnology , thermodynamics , biochemistry , physics , engineering
The states in the surface and the bulk phases of Na ion‐sensitive polymeric membranes based on a synthetic carrier were investigated using SEM, IR, 13 C‐NMR, and GC. The 13 C‐NMR study revealed that conformation change of the carrier took place when the carrier was incorporated into the membrane phase. From SEM, IR, and 13 C‐NMR experiments with a deteriorated membrane, the conformation change of the carrier was proposed as one of the deterioration factors other than the decrease in the diffusion coefficient of the carrier in the membrane phase.