title: Porphyrin network polymers prepared via a click reaction and facilitated oxygen permeation through their membranes.
abstract: Network polymers of cobaltporphyrin derivatives are prepared by a facile click reaction via the Michael addition of acetoacetate-substituted tetraphenyl cobaltporphyrin and tri- or tetra-acrylates. The conversion is saturated for 1 h in the presence of a catalyst, which almost reaches the same gelation point of the formed network polymers. Deeply and homogeneously red-colored membranes with a sub-micrometer thickness are yielded on a porous supporting membrane. They are still tough even with a very high content of the rigid porphyrin residue. The oxygen permeability is high, at 10-100 Barrer, and the oxygen/nitrogen permselectivity (PO2/PN2) is significantly enhanced with the porphyrin content reaching 30, for the membranes with ca. 70 wt% porphyrin content.
authors.affiliation: Department of Applied Chemistry, Waseda University, Tokyo, 169-8555, Japan.
authors.forename: Natsuru
authors.initials: N
authors.lastname: Chikushi
authors.forename: Emiko
authors.initials: E
authors.lastname: Ohara
authors.forename: Ayako
authors.initials: A
authors.lastname: Hisama
authors.forename: Hiroyuki
authors.initials: H
authors.lastname: Nishide
mesh_terms: D002384:Catalysis; D057930:Click Chemistry; D010100:Oxygen / Q000737:chemistry*; D010539:Permeability; D011108:Polymers / Q000138:chemical synthesis / Q000737:chemistry*; D016062:Porosity; D011166:Porphyrins / Q000737:chemistry*
chemical_list: D011108:Polymers; D011166:Porphyrins; D010100:Oxygen
keywords: Michael addition; cobaltporphyrin; facilitated transport; network polymer; oxygen permeability