MARC details
| 000 -LEADER |
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| fixed length control field |
02413nam a2200313Ia 4500 |
| 003 - CONTROL NUMBER IDENTIFIER |
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| control field |
MX-MdCICY |
| 005 - DATE AND TIME OF LATEST TRANSACTION |
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| control field |
20250625164354.0 |
| 040 ## - CATALOGING SOURCE |
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| Transcribing agency |
CICY |
| 090 ## - LOCALLY ASSIGNED LC-TYPE CALL NUMBER (OCLC); LOCAL CALL NUMBER (RLIN) |
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| Classification number (OCLC) (R) ; Classification number, CALL (RLIN) (NR) |
B-21391 |
| 008 - FIXED-LENGTH DATA ELEMENTS--GENERAL INFORMATION |
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| fixed length control field |
250602s9999 xx |||||s2 |||| ||und|d |
| 245 10 - TITLE STATEMENT |
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| Title |
Intrinsically microporous polyimides derived from norbornane-2-spiro-?-cyclopentanone-??-spiro-2?-norbornane-5,5?,6,6?-tetracarboxylic dianhydride |
| 490 0# - SERIES STATEMENT |
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| Series statement |
Polymer. 228, 123955, 2021, DOI: 10.1016/j.polymer.2021.123955 |
| 520 3# - SUMMARY, ETC. |
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| Summary, etc. |
Here, a series of intrinsically microporous polyimides (PIM-PIs) were prepared from norbornane-2-spiro-?-cyclopentanone-??-spiro-2?-norbornane-5,5?,6,6?-tetracarboxylic dianhydride (CpODA) and archetypal contorted diamines, and their microstructures and gas transport properties were systematically investigated and compared with those of the counterparts derived from 4,4'-(hexafluoroisopropylidene)diphthalic anhydride (6FDA). For certain diamines, the surface areas, interchain distances, and fractional free volumes (FFV) of the CpODA-derived PIM-PIs were considerably greater than those of the 6FDA-derived ones, and were in the range of 92-567 m2 g?1, 0.575-0.607 nm, and 0.194-0.246, respectively. Consequently, the CpODA-derived PIM-PIs overall displayed higher gas permeabilities and better gas separation performances compared to the 6FDA-derived ones. In particular, CpODA-TBDA2 and CpODA-DAT showed high H2 permeabilities (>600 Barrer) and moderate H2/N2 and H2/CH4 selectivities which approached or even surpassed the corresponding 2008 Robeson upper bounds. The excellent gas separation performance of these CpODA-derived PIM-PIs may be attributed to the contorted and bulky architecture of the CpODA residue, which led to reduced inter- and intra-molecular interactions and the formation of ultramicropores of <0.7 nm. © 2021 Elsevier Ltd |
| 650 14 - SUBJECT ADDED ENTRY--TOPICAL TERM |
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| Topical term or geographic name entry element |
ALICYCLIC DIANHYDRIDE |
| 650 14 - SUBJECT ADDED ENTRY--TOPICAL TERM |
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| Topical term or geographic name entry element |
GAS SEPARATION PERFORMANCE |
| 650 14 - SUBJECT ADDED ENTRY--TOPICAL TERM |
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| Topical term or geographic name entry element |
INTERCHAIN DISTANCE |
| 650 14 - SUBJECT ADDED ENTRY--TOPICAL TERM |
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| Topical term or geographic name entry element |
POLYIMIDES OF INTRINSIC MICROPORE |
| 650 14 - SUBJECT ADDED ENTRY--TOPICAL TERM |
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| Topical term or geographic name entry element |
STRUCTURE-PROPERTY RELATIONSHIP |
| 700 12 - ADDED ENTRY--PERSONAL NAME |
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| Personal name |
Lu Y. |
| 700 12 - ADDED ENTRY--PERSONAL NAME |
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| Personal name |
Hu X. |
| 700 12 - ADDED ENTRY--PERSONAL NAME |
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| Personal name |
Pang Y. |
| 700 12 - ADDED ENTRY--PERSONAL NAME |
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| Personal name |
Miao J. |
| 700 12 - ADDED ENTRY--PERSONAL NAME |
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| Personal name |
Zhao J. |
| 700 12 - ADDED ENTRY--PERSONAL NAME |
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| Personal name |
Nie W. |
| 700 12 - ADDED ENTRY--PERSONAL NAME |
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| Personal name |
Wang Z. |
| 700 12 - ADDED ENTRY--PERSONAL NAME |
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| Personal name |
Yan J. |
| 856 40 - ELECTRONIC LOCATION AND ACCESS |
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| Uniform Resource Identifier |
<a href="https://drive.google.com/file/d/1ymuWioxyN0IVCTaH905zXc-R7z2cwb8h/view?usp=drive_link">https://drive.google.com/file/d/1ymuWioxyN0IVCTaH905zXc-R7z2cwb8h/view?usp=drive_link</a> |
| Public note |
Para ver el documento ingresa a Google con tu cuenta @cicy.edu.mx |
| 942 ## - ADDED ENTRY ELEMENTS (KOHA) |
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| Source of classification or shelving scheme |
Clasificación local |
| Koha item type |
Documentos solicitados |
