title: Capture and Reversible Storage of Volatile Iodine by Novel Conjugated Microporous Polymers Containing Thiophene Units.
abstract: Conjugated microporous polymers having thiophene building blocks (SCMPs), which originated from ethynylbenzene monomers with 2,3,5-tribromothiophene, were designedly synthesized through Pd(0)/CuI catalyzed Sonogashira-Hagihara cross-coupling polymerization. The morphologies, structure and physicochemical properties of the as-synthesized products were characterized through scanning electron microscope (SEM), thermogravimeter analysis (TGA), (13)C CP/MAS solid state NMR and Fourier transform infrared spectroscope (FTIR) spectra. Nitrogen sorption-desorption analysis shows that the as-synthesized SCMPs possesses a high specific surface area of 855 m(2) g(-1). Because of their abundant porosity, π-conjugated network structure, as well as electron-rich thiophene building units, the SCMPs show better adsorption ability for iodine and a high uptake value of 222 wt % was obtained, which can compete with those nanoporous materials such as silver-containing zeolite, metal-organic frameworks (MOFs) and conjugated microporous polymers (CMPs), etc. Our study might provide a new possibility for the design and synthesis of functional CMPs containing electron-rich building units for effective capture and reversible storage of volatile iodine to address environmental issues.
authors.affiliation: College of Petrochemical Technology, Lanzhou University of Technology , Lanzhou 730050, P. R. China.
authors.forename: Xin
authors.initials: X
authors.lastname: Qian
authors.affiliation: College of Petrochemical Technology, Lanzhou University of Technology , Lanzhou 730050, P. R. China.
authors.forename: Zhao-Qi
authors.initials: ZQ
authors.lastname: Zhu
authors.affiliation: College of Petrochemical Technology, Lanzhou University of Technology , Lanzhou 730050, P. R. China.
authors.forename: Han-Xue
authors.initials: HX
authors.lastname: Sun
authors.affiliation: College of Petrochemical Technology, Lanzhou University of Technology , Lanzhou 730050, P. R. China.
authors.forename: Feng
authors.initials: F
authors.lastname: Ren
authors.affiliation: College of Petrochemical Technology, Lanzhou University of Technology , Lanzhou 730050, P. R. China.
authors.forename: Peng
authors.initials: P
authors.lastname: Mu
authors.affiliation: College of Petrochemical Technology, Lanzhou University of Technology , Lanzhou 730050, P. R. China.
authors.forename: Weidong
authors.initials: W
authors.lastname: Liang
authors.affiliation: Experimental Center, Northwest University for Nationalities , Lanzhou 730030, P.R. China.
authors.forename: Lihua
authors.initials: L
authors.lastname: Chen
authors.affiliation: College of Petrochemical Technology, Lanzhou University of Technology , Lanzhou 730050, P. R. China.
authors.forename: An
authors.initials: A
authors.lastname: Li
keywords: conjugated microporous polymers; iodine uptake; porosity; storage; thiophene