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Novel benzo‐15‐crown‐5 functionalized α‐olefin/CO terpolymers for membrane applications
Author(s) -
Klok HarmAnton,
Eibeck Peter,
Schmid Markus,
AbuSurrah Adnan S.,
Möller Martin,
Rieger Bernhard
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.1997.021980908
Subject(s) - olefin fiber , polymer chemistry , microporous material , membrane , chemistry , crown ether , polymer , copolymer , ether , carbon monoxide , glass transition , permeation , barrer , organic chemistry , ion , catalysis , biochemistry
The synthesis of a benzo‐15‐crown‐5 functionalized α‐olefin (4′‐(undec‐10‐enylcarboxylate)benzo‐15‐crown‐5, 5 ) and its terpolymerization with carbon monoxide and various α‐olefins are described. A decline of the glass transition temperatures ( T g ) of the corresponding terpolymers was observed upon incorporating compound 5 into the polymer main chain. Ion‐selective membranes were prepared by encapsulating the benzo‐15‐crown‐5 functionalized α‐olefin/CO terpolymers in a microporous polyethylene support. Preliminary ion‐transport experiments demonstrate the ability of these novel crown ether substituted polyketones to transport NaClO 4 across the membranes. Adjusting the polarity of the polyketones via the length of the olefinic side chain offers a means to control the ion‐permeation‐rates.