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Selective permeation of o‐, m‐, and p‐isomers of benzene derivatives through polymer membranes based on cyclodextrin complexation in the bulk aqueous solution
Author(s) -
Anzai JunIchi,
Kobayashi Yutaka,
Ueno Akihiko,
Osa Tetsuo
Publication year - 1986
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.1986.070310505
Subject(s) - cyclodextrin , membrane , vinyl alcohol , aqueous solution , chemistry , permeation , polymer chemistry , benzene , vinyl chloride , polymer , organic chemistry , copolymer , biochemistry
Transport behavior of several aromatic compounds through a poly(vinyl chloride)membrane and poly(vinyl alcohol)‐poly(ethylenimine) composite membranes was studied in the presence of cyclodextrin in the aqueous solution. o‐Isomers of nitrophenol, nitroaniline, and iodophenol were effectively separated from their mixture of regio isomers based on the preferential complexation between cyclodextrin and the m‐ and p‐isomers over the o‐isomers. Pumping of p ‐nitroaniline across the membrane was also observed by addition of cyclodextrin. The results were explained as a consequence of the selective complex formation between cyclodexarin and substrate and the low membrane permeability of the complexes.