Synthesis and gas separation performance of intrinsically microporous polyimides derived from sterically hindered binaphthalenetetracarboxylic dianhydride
文献类型：期刊论文
| 作者 | Hu, Xiaofan; Mu, Hongliang; Miao, Jie; Lu, Yao; Wang, Xianwei; Meng, Xiangsheng; Wang, Zhen; Yan, Jingling |
| 刊名 | POLYMER CHEMISTRY
 |
| 出版日期 | 2020 |
| 卷号 | 11期号:25页码:4172-4179 |
| 关键词 | TROGERS BASE PERMEATION PROPERTIES TRANSPORT PROPERTIES LADDER POLYMERS CHAIN-PACKING UPPER-BOUNDS FREE-VOLUME MEMBRANES PERMEABILITY TRIPTYCENE |
| DOI | 10.1039/d0py00594k |
| 英文摘要 | A novel dianhydride, 3,3 '-di-tert-butyl-2,2 '-dimethoxy-[1,1 '-binaphthalene]-6,6 ',7,7 '-tetracarboxylic dianhydride (TNTDA), was preparedviaa multi-step process. A model compound made using TNTDA and aniline has a dihedral angle of 75 degrees between the two naphthalimide rings, evidenced by single crystal X-ray diffraction data. High temperature polycondensation of TNTDA with four different diamines afforded four intrinsically microporous polyimides (PIM-PIs). The fractional free volumes (FFV), surface areas, and average inter-chain distances of the polyimides were 0.181-0.214, 379-564 m(2)g(-1), and 0.635-0.682 nm, respectively. Furthermore, the rigid, bulky, and contorted structures of the PIM-PIs led to the formation of roughly 0.6 nm ultramicropores and roughly 1.2 nm larger micropores. The ultramicropores can improve the gas size-sieving capability of the polyimides, while the larger micropores can facilitate high permeability. Consequently, the TNTDA-based PIM-PIs showed an improved gas separation performance compared to polymers made using the benchmark monomer, 4,4 '-(hexafluoroisopropylidene)diphthalic anhydride. In particular, polymers from TNTDA and 2,6-diaminotriptycene (DAT) exhibited the best performance, with CO2/CH(4)and O-2/N(2)separation metrics approaching or surpassing the 2008 Robeson upper bounds, because of the presence of additional ultramicropores related to the internal free volume of the triptycene moiety. |
| 学科主题 | Polymer Science |
| 源URL | [http://ir.nimte.ac.cn/handle/174433/20668]  |
| 专题 | 2020专题 2020专题_期刊论文 |
| 作者单位 | 1.Wang, Z 2.Yan, JL (corresponding author), Chinese Acad Sci, Ningbo Inst Mat Technol & Engn, Ningbo 315201, Peoples R China. 3.Meng, XS |
| 推荐引用方式 GB/T 7714 | Hu, Xiaofan,Mu, Hongliang,Miao, Jie,et al. Synthesis and gas separation performance of intrinsically microporous polyimides derived from sterically hindered binaphthalenetetracarboxylic dianhydride[J]. POLYMER CHEMISTRY,2020,11(25):4172-4179. |
| APA | Hu, Xiaofan.,Mu, Hongliang.,Miao, Jie.,Lu, Yao.,Wang, Xianwei.,...&Yan, Jingling.(2020).Synthesis and gas separation performance of intrinsically microporous polyimides derived from sterically hindered binaphthalenetetracarboxylic dianhydride.POLYMER CHEMISTRY,11(25),4172-4179. |
| MLA | Hu, Xiaofan,et al."Synthesis and gas separation performance of intrinsically microporous polyimides derived from sterically hindered binaphthalenetetracarboxylic dianhydride".POLYMER CHEMISTRY 11.25(2020):4172-4179. |
入库方式： OAI收割
来源：宁波材料技术与工程研究所
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