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    舒格, 李昱达, 汪锋. 咔唑基噻咯微孔骨架材料的合成及其气体吸附[J]. 功能高分子学报, 2020, 33(4): 407-414. doi: 10.14133/j.cnki.1008-9357.20190810001
    引用本文: 舒格, 李昱达, 汪锋. 咔唑基噻咯微孔骨架材料的合成及其气体吸附[J]. 功能高分子学报, 2020, 33(4): 407-414. doi: 10.14133/j.cnki.1008-9357.20190810001
    SHU Ge, LI Yuda, WANG Feng. Synthesis and Gas Adsorption Properties of Carbazole-Functionalized Silole-Containing Microporous Frameworks[J]. Journal of Functional Polymers, 2020, 33(4): 407-414. doi: 10.14133/j.cnki.1008-9357.20190810001
    Citation: SHU Ge, LI Yuda, WANG Feng. Synthesis and Gas Adsorption Properties of Carbazole-Functionalized Silole-Containing Microporous Frameworks[J]. Journal of Functional Polymers, 2020, 33(4): 407-414. doi: 10.14133/j.cnki.1008-9357.20190810001

    咔唑基噻咯微孔骨架材料的合成及其气体吸附

    Synthesis and Gas Adsorption Properties of Carbazole-Functionalized Silole-Containing Microporous Frameworks

    • 摘要: 分别以1,1-二甲基-3,4-二苯基-2,5-双(4-(9-苯基-咔唑))噻咯、1-甲基-1,3,4-三苯基-2,5-双(4-(9-苯基-咔唑))噻咯和1,1,3,4-四苯基-2,5-双(4-(9-苯基-咔唑)噻咯单元为前驱体,通过氧化偶联聚合,制备了3种微孔骨架材料CPDM-CzS、CPPM-CzS和CPDP-CzS。通过傅里叶红外光谱(FT-IR)、X射线衍射(XRD)、热重分析(TG)、冷场发射扫描电子显微镜(FSEM)和透射电子显微镜(TEM)对3种聚合物的结构和形貌进行了表征,采用N2吸附、CO2吸附、H2吸附和CH4吸附对材料的孔道性能和气体吸附性能进行了研究。结果表明:CPDM-CzS具有较高的CO2吸附量(2.1 mmol/g,113 kPa,273 K)和优良的CO2/N2选择性气体吸附值(75.2),CPPM-CzS具有较高的H2吸附量(0.0151 g/g,113 kPa,77 K)。

       

      Abstract: A series of microporous organic polymers (MOPs) were synthesized by a one-step oxidative coupling reaction using carbazole-functionalized siloles, such as 1,1-dimethyl-3,4-diphenyl-2,5-bis(4'-(9H-carbazol-9-yl)-phenyl)silole, 1-methyl-1-phenyl-3,4-diphenyl-2,5-bis(4'-(9H-carbazol-9-yl)-phenyl)silole and 1,1-diphenyl-3,4-diphenyl-2,5-bis(4'-(9H-carbazol-9-yl)-phenyl)silole. The structure and properties of the three MOPs were characterized by Fourier transform infrared spectroscopy (FT-IR), X-ray diffraction (XRD), thermogravimetric (TG) analysis, field emission scanning electron microscope(FSEM) and transmission electron microscope (TEM). FT-IR spectra indicated the success of the oxidative coupling reaction for constructing the polymer frameworks. XRD measurements revealed that all the polymer frameworks were amorphous solid in nature. These MOPs exhibited high thermal stability with the onset of decomposition temperature above 400 ℃ at 5% mass loss under nitrogen flow. The nitrogen adsorption test showed that the specific surface area of the polymers ranged from 587 m2/g to 617 m2/g. There was a rigid main chain and nitrogen-rich conjugate structure of microporous skeleton material. The CO2 adsorption of CPDM-CzS was 2.1 mmol/g (113 kPa, 273 K) and the H2 adsorption of CPPM-CzS was 0.0151 g/g (113 kPa, 77 K). In addition, CPDM-CzS showed excellent selectivity of adsorption performance of 75.2 for CO2/N2. These microporous frameworks will have prospective applications in gas adsorption and separation.

       

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