title: Microporous poly(Schiff base) constructed from tetraphenyladamantane units for adsorption of gases and organic vapors.
abstract: A new microporous poly(Schiff base) (PSN-3) is constructed from 1,3,5,7-tetrakis(4-formylphenyl)adamantane and 1,3,5,7-tetrakis(4-aminophenyl)adamantane through an A4 -A4 ' reaction. The surface and internal morphologies of porous PSN-3 are examined by FE-SEM and HR-TEM. PSN-3 exhibits a BET surface area of 865 m(2) g(-1) with a major pore size around 0.6 nm. Moreover, PSN-3 can uptake 1.32 wt% H2 (77 K/1 bar), 13.6 wt% CO2 (273 K/1 bar), 80.5 wt% benzene, and 63.7 wt% cyclohexane (298 K/0.9 bar). The adsorption selectivities for CO2/N2, CO2/CH4, benzene/N2, and benzene/H2O are 88, 16, 267, and 19, respectively. The high adsorption capacities and selectivities for gases and vapors make PSN-3 a promising candidate for H2 storage, CO2 capture, and recovery of organic pollutants.
authors.affiliation: State Key Laboratory of Fine Chemicals, Department of Polymer Science and Materials, School of Chemical Engineering, Dalian University of Technology, Dalian, 116024, China.
authors.forename: Guiyang
authors.initials: G
authors.lastname: Li
authors.forename: Biao
authors.initials: B
authors.lastname: Zhang
authors.forename: Zhonggang
authors.initials: Z
authors.lastname: Wang
mesh_terms: D000327:Adsorption; D000393:Air Pollutants / Q000737:chemistry*; D005740:Gases / Q000737:chemistry*; D011108:Polymers / Q000138:chemical synthesis / Q000737:chemistry*; D016062:Porosity; D012545:Schiff Bases / Q000737:chemistry*; D013499:Surface Properties; D013696:Temperature
chemical_list: D000393:Air Pollutants; D005740:Gases; D011108:Polymers; D012545:Schiff Bases
keywords: adsorption; crosslinking; microporous; poly(Schiff base); synthesis