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    NCU Institutional Repository > 理學院 > 化學學系 > 期刊論文 >  Item 987654321/101770


    請使用永久網址來引用或連結此文件: https://ir.lib.ncu.edu.tw/handle/987654321/101770


    題名: Dendrimer-like conjugated microporous polymers
    作者: 謝發坤;Qiao, Shanlin;Wang, Ting;Huang, Wei;Jiang, Jia-Xing;Du, Zhengkun;Shieh, Fa-Kuen;Yang, Renqiang
    貢獻者: 理學院化學學系
    關鍵詞: Adsorption;Carbazoles;Carbon dioxide;Monomers;Polymerization;Surface area;Surface chemistry;Walls
    日期: 2016-02-14
    上傳時間: 2026-04-21 14:43:49 (UTC+8)
    出版者: Royal Society of Chemistry
    摘要: 摘要: Four dendrimer-like polycarbazole conjugated polymer networks P-G1-T, P-G2-T, P-G1-Fo and P-G2-Fo were designed and synthesized by FeCl 3 oxidative coupling polymerization. Aromatic thiophene and fluorenone units were employed as the linkers between carbazole units to construct the building blocks. The first generation polymers (1st) were produced from the monomers containing two carbazole units, while the second generation polymers (2nd) were produced from the monomers with six carbazole units, which feature double oxidative polymerization sites compared with the monomers for the 1st generation. It was found that the 2nd generation polymers show a higher Brunauer-Emmett-Teller (BET) surface area and a higher gas adsorption performance than the 1st generation polymers because of more reactive sites and larger torsion angles in the monomers for the 2nd generation, which led to a highly crosslinked polymer structure and thus a high surface area. All of the polymers show high isosteric heats of CO 2 adsorption over 33 kJ mol −1 because the incorporation of heteroatoms (N, S and/or O) into the skeleton of the polymers enhanced the interaction between the pore wall and CO 2 molecules. Dendrimer-like carbazole-based conjugated microporous networks were designed and prepared by oxidative polymerization at room temperature.
    出版日期: 2016-01-01
    出處: Polymer chemistry, 2016-01, Vol.7 (6), p.1281-1289
    資源來源: Royal Society of Chemistry
    識別號: ISSN: 1759-9954
    識別號: EISSN: 1759-9962
    識別號: DOI: 10.1039/c5py01767j
    顯示於類別:[化學學系] 期刊論文

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