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• W2207651508 abstract "Polymers of intrinsic microporosity (PIMs) possess rigid and highly non-linear molecular structures. The contortion site of PIM-1 is provided by the monomer 5,5',6,6'-tetrahydroxy-3,3,3',3'-tetramethyl-1,1'-spirobisindane (TTSBI). The paper described the effect of synthetic conditions including catalyst and reaction time on the yield and purity of TTSBI. Then, PIM-1 was synthesized by TTSBI and 2,3,5,6-tetrafluorophthalonitrile in DMF at 60 o C for 96h. The chemical structure of TTSBI and PIM-1 was characterized by 1 H NMR and FT-IR. The gas separation properties of PIM-1 treated in different conditions were obtained. The optimized synthetic condition of TTSBI was that hydrochloric acid was chosen as catalyst to react for five hours at 105 o C. PIM-1 had good solubility in chloroform. The PIM-1 membranes had good gas permeability coefficients for O 2, N 2, H 2, CH 4 and CO2. PIM-1 membrane treated by methanol solvent soaked or redissolved in chloroform showed outstanding gas permeability coefficient and a moderate selectivity." @default.
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• W2207651508 date "2015-01-01" @default.
• W2207651508 modified "2023-09-24" @default.
• W2207651508 title "Synthesis and Gas Separation Properties of Intrinsic Microporosity Polymer PIM-1" @default.
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• W2207651508 doi "https://doi.org/10.2991/icadme-15.2015.20" @default.
• W2207651508 hasPublicationYear "2015" @default.
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