FRINK Linked Data Fragments server

Matches in SemOpenAlex for { <https://semopenalex.org/work/W3039843690> ?p ?o ?g. }

• W3039843690 endingPage "122776" @default.
• W3039843690 startingPage "122776" @default.
• W3039843690 abstract "A series of carbon molecular sieve (CMS) membranes have been prepared for CO2/N2 separation based on the aromatic hyperbranched polyimides (HBPIs) synthesized by polymerizing 1,3,5-Tris(4-aminophenyl)benzene (TAPB) and three commercially available dianhydrides, including 1,2,4,5-benzenetetracarboxylic anhydride (PMDA), 2,3,3′,4′-Biphenyltetracarboxylic dianhydride (BPDA), 4,4′-(hexafluoroisopropylidene) diphthalic anhydride (6FDA). The polymerizations were carried out at −60 °C to avoid the gelation at the critical polymerization concentration and the free-standing membranes were successfully obtained from the HBPI solution using directly solvent casting method after post thermal annealing. The hyperbranched molecules swollen, interpenetrated into the adjacent molecules and finally formed a network, when the temperature increased to 60 °C. Both the molecular entanglement and the post thermal imidization contribute to the membrane formation, without resorting to any additional crosslinking agents. The factors governing the gas separation of the HBPI membranes and the CMS ones were investigated using TGA analysis, FT-IR spectroscopy, X-ray diffraction and Raman characterization. The results confirm that the inter-chain spacing in the HBPIs provide the pathways for gas molecules crossing the membrane. The gas permeabilities of the CMS membranes have been further improved owing to the ultramicro- and micro-pores generated after pyrolyzing at 550 °C. For example, the CO2 permeability of XS13-550 significantly increased from 26.0 barrer (XS13) to 16564.4 barrer with a loss of CO2/N2 selectivity from 34.7 (XS13) to 16.6. This work provides a low-temperature process to prepare HBPI precursors without any crosslinking agents." @default.
• W3039843690 created "2020-07-10" @default.
• W3039843690 creator A5005921727 @default.
• W3039843690 creator A5007393852 @default.
• W3039843690 creator A5013044782 @default.
• W3039843690 creator A5037575510 @default.
• W3039843690 creator A5073629586 @default.
• W3039843690 creator A5089236349 @default.
• W3039843690 date "2020-08-01" @default.
• W3039843690 modified "2023-10-07" @default.
• W3039843690 title "Synthesis and gas transport properties of hyperbranched network polyimides derived from Tris(4-aminophenyl)benzene" @default.
• W3039843690 cites W1464885205 @default.
• W3039843690 cites W1882170483 @default.
• W3039843690 cites W1965819595 @default.
• W3039843690 cites W1973383213 @default.
• W3039843690 cites W1975074871 @default.
• W3039843690 cites W1983594121 @default.
• W3039843690 cites W1984730201 @default.
• W3039843690 cites W1986524679 @default.
• W3039843690 cites W1988577537 @default.
• W3039843690 cites W1992828163 @default.
• W3039843690 cites W1996537601 @default.
• W3039843690 cites W1998334360 @default.
• W3039843690 cites W2010828447 @default.
• W3039843690 cites W2013855544 @default.
• W3039843690 cites W2018899624 @default.
• W3039843690 cites W2024865049 @default.
• W3039843690 cites W2026733941 @default.
• W3039843690 cites W2027808498 @default.
• W3039843690 cites W2035899565 @default.
• W3039843690 cites W2036014793 @default.
• W3039843690 cites W2043933696 @default.
• W3039843690 cites W2050841731 @default.
• W3039843690 cites W2061981083 @default.
• W3039843690 cites W2075717509 @default.
• W3039843690 cites W2081197814 @default.
• W3039843690 cites W2094270722 @default.
• W3039843690 cites W2152137692 @default.
• W3039843690 cites W2153896198 @default.
• W3039843690 cites W2231310336 @default.
• W3039843690 cites W2508298952 @default.
• W3039843690 cites W2551710698 @default.
• W3039843690 cites W2555398540 @default.
• W3039843690 cites W2899965530 @default.
• W3039843690 cites W2928269483 @default.
• W3039843690 cites W2978714458 @default.
• W3039843690 cites W2981113137 @default.
• W3039843690 cites W2990207892 @default.
• W3039843690 cites W4229893547 @default.
• W3039843690 cites W4253928358 @default.
• W3039843690 doi "https://doi.org/10.1016/j.polymer.2020.122776" @default.
• W3039843690 hasPublicationYear "2020" @default.
• W3039843690 type Work @default.
• W3039843690 sameAs 3039843690 @default.
• W3039843690 citedByCount "4" @default.
• W3039843690 countsByYear W30398436902021 @default.
• W3039843690 countsByYear W30398436902022 @default.
• W3039843690 countsByYear W30398436902023 @default.
• W3039843690 crossrefType "journal-article" @default.
• W3039843690 hasAuthorship W3039843690A5005921727 @default.
• W3039843690 hasAuthorship W3039843690A5007393852 @default.
• W3039843690 hasAuthorship W3039843690A5013044782 @default.
• W3039843690 hasAuthorship W3039843690A5037575510 @default.
• W3039843690 hasAuthorship W3039843690A5073629586 @default.
• W3039843690 hasAuthorship W3039843690A5089236349 @default.
• W3039843690 hasConcept C120665830 @default.
• W3039843690 hasConcept C121332964 @default.
• W3039843690 hasConcept C127413603 @default.
• W3039843690 hasConcept C13253532 @default.
• W3039843690 hasConcept C159985019 @default.
• W3039843690 hasConcept C171250308 @default.
• W3039843690 hasConcept C178790620 @default.
• W3039843690 hasConcept C18411161 @default.
• W3039843690 hasConcept C185592680 @default.
• W3039843690 hasConcept C188027245 @default.
• W3039843690 hasConcept C192562407 @default.
• W3039843690 hasConcept C2779227376 @default.
• W3039843690 hasConcept C2780008458 @default.
• W3039843690 hasConcept C2780965675 @default.
• W3039843690 hasConcept C32909587 @default.
• W3039843690 hasConcept C40003534 @default.
• W3039843690 hasConcept C41625074 @default.
• W3039843690 hasConcept C42360764 @default.
• W3039843690 hasConcept C44228677 @default.
• W3039843690 hasConcept C521977710 @default.
• W3039843690 hasConcept C55493867 @default.
• W3039843690 hasConceptScore W3039843690C120665830 @default.
• W3039843690 hasConceptScore W3039843690C121332964 @default.
• W3039843690 hasConceptScore W3039843690C127413603 @default.
• W3039843690 hasConceptScore W3039843690C13253532 @default.
• W3039843690 hasConceptScore W3039843690C159985019 @default.
• W3039843690 hasConceptScore W3039843690C171250308 @default.
• W3039843690 hasConceptScore W3039843690C178790620 @default.
• W3039843690 hasConceptScore W3039843690C18411161 @default.
• W3039843690 hasConceptScore W3039843690C185592680 @default.
• W3039843690 hasConceptScore W3039843690C188027245 @default.
• W3039843690 hasConceptScore W3039843690C192562407 @default.
• W3039843690 hasConceptScore W3039843690C2779227376 @default.

• next