No Cover Image

Journal article 307 views 87 downloads

π-Extended dihydrophenazine based redox responsive polymers of intrinsic microporosity

Caterina Bezzu Orcid Logo, Beatrice Bartolomei Orcid Logo, YUE WU, Martina Vaccaro, Mariagiulia Longo, Maria Penelope De Santo, Alessio Fuoco, Maurizio Prato Orcid Logo, Mariolino Carta Orcid Logo, Jacopo Dosso Orcid Logo

Journal of Materials Chemistry A, Volume: 13, Issue: 27

Swansea University Authors: Caterina Bezzu Orcid Logo, YUE WU, Mariolino Carta Orcid Logo

  • 69747.VOR.pdf

    PDF | Version of Record

    This Open Access Article is licensed under a Creative Commons Attribution 3.0 Unported Licence.

    Download (1.19MB)

Check full text

DOI (Published version): 10.1039/d5ta02477c

Abstract

Redox-switchable Polymers of Intrinsic Microporosity (PIMs) are a promising yet underexplored class of materials. Here, we introduce π-extended dihydrophenazine-based PIMs for gas separation. The tert-butyl substituted Phen-PIM-1 stands out as a rare example of a redox-active switchable polymer with...

Full description

Published in: Journal of Materials Chemistry A
ISSN: 2050-7488 2050-7496
Published: Royal Society of Chemistry (RSC) 2025
Online Access: Check full text

URI: https://cronfa.swan.ac.uk/Record/cronfa69747
first_indexed 2025-06-16T14:11:32Z
last_indexed 2025-07-22T05:03:56Z
id cronfa69747
recordtype SURis
fullrecord <?xml version="1.0"?><rfc1807><datestamp>2025-07-21T12:14:26.8547095</datestamp><bib-version>v2</bib-version><id>69747</id><entry>2025-06-16</entry><title>&#x3C0;-Extended dihydrophenazine based redox responsive polymers of intrinsic microporosity</title><swanseaauthors><author><sid>0ae638b129bf53b1ba5162afa9374e08</sid><ORCID>0000-0001-6918-8281</ORCID><firstname>Caterina</firstname><surname>Bezzu</surname><name>Caterina Bezzu</name><active>true</active><ethesisStudent>false</ethesisStudent></author><author><sid>a0ecf03ae879c40cd3740391e4af4f62</sid><firstname>YUE</firstname><surname>WU</surname><name>YUE WU</name><active>true</active><ethesisStudent>false</ethesisStudent></author><author><sid>56aebf2bba457f395149bbecbfa6d3eb</sid><ORCID>0000-0003-0718-6971</ORCID><firstname>Mariolino</firstname><surname>Carta</surname><name>Mariolino Carta</name><active>true</active><ethesisStudent>false</ethesisStudent></author></swanseaauthors><date>2025-06-16</date><deptcode>EAAS</deptcode><abstract>Redox-switchable Polymers of Intrinsic Microporosity (PIMs) are a promising yet underexplored class of materials. Here, we introduce &#x3C0;-extended dihydrophenazine-based PIMs for gas separation. The tert-butyl substituted Phen-PIM-1 stands out as a rare example of a redox-active switchable polymer with a high surface area (BET &gt;600 m2 g&#x2212;1) and excellent balance of porosity, pore size, and gas selectivity. Phen-PIM-1 is soluble in N-methyl pyrrolidone (NMP), enabling membrane fabrication, while the methyl-substituted Phen-PIM-2 is insoluble, highlighting the role of bulky tert-butyl groups (tBu) in solubility and film formation. Gas separation studies, performed on powder (IAST), demonstrate outstanding performance, with CO2/N2 selectivity up to 49. As a membrane material, Phen-PIM-1 shows competitive separation within the Robeson upper bound for several commercially important gas pairs, proving its potential for carbon capture and molecular sieving. Furthermore, these materials exhibit efficient and reversible redox switching upon chemical stimuli, leading to marked differences in properties and enhanced selectivity. This study establishes dihydrophenazine-based PIMs as a versatile platform for developing tunable, high-performance membranes for energy and environmental applications.</abstract><type>Journal Article</type><journal>Journal of Materials Chemistry A</journal><volume>13</volume><journalNumber>27</journalNumber><paginationStart/><paginationEnd/><publisher>Royal Society of Chemistry (RSC)</publisher><placeOfPublication/><isbnPrint/><isbnElectronic/><issnPrint>2050-7488</issnPrint><issnElectronic>2050-7496</issnElectronic><keywords/><publishedDay>3</publishedDay><publishedMonth>6</publishedMonth><publishedYear>2025</publishedYear><publishedDate>2025-06-03</publishedDate><doi>10.1039/d5ta02477c</doi><url/><notes/><college>COLLEGE NANME</college><department>Engineering and Applied Sciences School</department><CollegeCode>COLLEGE CODE</CollegeCode><DepartmentCode>EAAS</DepartmentCode><institution>Swansea University</institution><apcterm>Another institution paid the OA fee</apcterm><funders>J. D. kindly acknowledges FRA2024-2025 funded by the University of Trieste and Microgrants 2024 funded by Regione FVG (LR 2/2011, ART. 4). M. P. is the AXA-Chair for Bionanotechnology (2016&#x2013;2026). This work was supported by the University of Trieste, INSTM, the Italian Ministry of Education MIUR (cofin Prot. 20228YFRNL), and la Agencia Estatal de Investigaciones through grant PID2022-140419OB-I00 funded by MCIN/AEI/10.13039/501100011033. M. V. and A. F. received funding from the European Union's Horizon Europe research and innovation program under grant agreement no. 101115488, within the EIC pathfinder project &#x201C;Double-Active Membranes for a sustainable CO2 &#x2013; DAM4CO2&#x201D; (HORIZON-EIC-2022-PATHFINDERCHALLENGES-01). C.G.B and M.C. gratefully acknowledge UK Research and Innovation (UKRI) under the UK government's Horizon Europe funding guarantee [grant number 10083164] associated with DAM4CO2. The authors gratefully acknowledge Daniel M. Dawson and the University of St Andrews for the 13C ssNMR service.</funders><projectreference/><lastEdited>2025-07-21T12:14:26.8547095</lastEdited><Created>2025-06-16T15:04:24.3516985</Created><path><level id="1">Faculty of Science and Engineering</level><level id="2">School of Engineering and Applied Sciences - Chemistry</level></path><authors><author><firstname>Caterina</firstname><surname>Bezzu</surname><orcid>0000-0001-6918-8281</orcid><order>1</order></author><author><firstname>Beatrice</firstname><surname>Bartolomei</surname><orcid>0000-0003-4190-0040</orcid><order>2</order></author><author><firstname>YUE</firstname><surname>WU</surname><order>3</order></author><author><firstname>Martina</firstname><surname>Vaccaro</surname><order>4</order></author><author><firstname>Mariagiulia</firstname><surname>Longo</surname><order>5</order></author><author><firstname>Maria Penelope De</firstname><surname>Santo</surname><order>6</order></author><author><firstname>Alessio</firstname><surname>Fuoco</surname><order>7</order></author><author><firstname>Maurizio</firstname><surname>Prato</surname><orcid>0000-0002-8869-8612</orcid><order>8</order></author><author><firstname>Mariolino</firstname><surname>Carta</surname><orcid>0000-0003-0718-6971</orcid><order>9</order></author><author><firstname>Jacopo</firstname><surname>Dosso</surname><orcid>0000-0003-4173-3430</orcid><order>10</order></author></authors><documents><document><filename>69747__34492__982a30b00ac84f3ab92c59f011084a53.pdf</filename><originalFilename>69747.VOR.pdf</originalFilename><uploaded>2025-06-16T15:09:37.4386889</uploaded><type>Output</type><contentLength>1245961</contentLength><contentType>application/pdf</contentType><version>Version of Record</version><cronfaStatus>true</cronfaStatus><documentNotes>This Open Access Article is licensed under a Creative Commons Attribution 3.0 Unported Licence.</documentNotes><copyrightCorrect>true</copyrightCorrect><language>eng</language><licence>http://creativecommons.org/licenses/by/3.0/</licence></document></documents><OutputDurs/></rfc1807>
spelling 2025-07-21T12:14:26.8547095 v2 69747 2025-06-16 π-Extended dihydrophenazine based redox responsive polymers of intrinsic microporosity 0ae638b129bf53b1ba5162afa9374e08 0000-0001-6918-8281 Caterina Bezzu Caterina Bezzu true false a0ecf03ae879c40cd3740391e4af4f62 YUE WU YUE WU true false 56aebf2bba457f395149bbecbfa6d3eb 0000-0003-0718-6971 Mariolino Carta Mariolino Carta true false 2025-06-16 EAAS Redox-switchable Polymers of Intrinsic Microporosity (PIMs) are a promising yet underexplored class of materials. Here, we introduce π-extended dihydrophenazine-based PIMs for gas separation. The tert-butyl substituted Phen-PIM-1 stands out as a rare example of a redox-active switchable polymer with a high surface area (BET >600 m2 g−1) and excellent balance of porosity, pore size, and gas selectivity. Phen-PIM-1 is soluble in N-methyl pyrrolidone (NMP), enabling membrane fabrication, while the methyl-substituted Phen-PIM-2 is insoluble, highlighting the role of bulky tert-butyl groups (tBu) in solubility and film formation. Gas separation studies, performed on powder (IAST), demonstrate outstanding performance, with CO2/N2 selectivity up to 49. As a membrane material, Phen-PIM-1 shows competitive separation within the Robeson upper bound for several commercially important gas pairs, proving its potential for carbon capture and molecular sieving. Furthermore, these materials exhibit efficient and reversible redox switching upon chemical stimuli, leading to marked differences in properties and enhanced selectivity. This study establishes dihydrophenazine-based PIMs as a versatile platform for developing tunable, high-performance membranes for energy and environmental applications. Journal Article Journal of Materials Chemistry A 13 27 Royal Society of Chemistry (RSC) 2050-7488 2050-7496 3 6 2025 2025-06-03 10.1039/d5ta02477c COLLEGE NANME Engineering and Applied Sciences School COLLEGE CODE EAAS Swansea University Another institution paid the OA fee J. D. kindly acknowledges FRA2024-2025 funded by the University of Trieste and Microgrants 2024 funded by Regione FVG (LR 2/2011, ART. 4). M. P. is the AXA-Chair for Bionanotechnology (2016–2026). This work was supported by the University of Trieste, INSTM, the Italian Ministry of Education MIUR (cofin Prot. 20228YFRNL), and la Agencia Estatal de Investigaciones through grant PID2022-140419OB-I00 funded by MCIN/AEI/10.13039/501100011033. M. V. and A. F. received funding from the European Union's Horizon Europe research and innovation program under grant agreement no. 101115488, within the EIC pathfinder project “Double-Active Membranes for a sustainable CO2 – DAM4CO2” (HORIZON-EIC-2022-PATHFINDERCHALLENGES-01). C.G.B and M.C. gratefully acknowledge UK Research and Innovation (UKRI) under the UK government's Horizon Europe funding guarantee [grant number 10083164] associated with DAM4CO2. The authors gratefully acknowledge Daniel M. Dawson and the University of St Andrews for the 13C ssNMR service. 2025-07-21T12:14:26.8547095 2025-06-16T15:04:24.3516985 Faculty of Science and Engineering School of Engineering and Applied Sciences - Chemistry Caterina Bezzu 0000-0001-6918-8281 1 Beatrice Bartolomei 0000-0003-4190-0040 2 YUE WU 3 Martina Vaccaro 4 Mariagiulia Longo 5 Maria Penelope De Santo 6 Alessio Fuoco 7 Maurizio Prato 0000-0002-8869-8612 8 Mariolino Carta 0000-0003-0718-6971 9 Jacopo Dosso 0000-0003-4173-3430 10 69747__34492__982a30b00ac84f3ab92c59f011084a53.pdf 69747.VOR.pdf 2025-06-16T15:09:37.4386889 Output 1245961 application/pdf Version of Record true This Open Access Article is licensed under a Creative Commons Attribution 3.0 Unported Licence. true eng http://creativecommons.org/licenses/by/3.0/
title π-Extended dihydrophenazine based redox responsive polymers of intrinsic microporosity
spellingShingle π-Extended dihydrophenazine based redox responsive polymers of intrinsic microporosity
Caterina Bezzu
YUE WU
Mariolino Carta
title_short π-Extended dihydrophenazine based redox responsive polymers of intrinsic microporosity
title_full π-Extended dihydrophenazine based redox responsive polymers of intrinsic microporosity
title_fullStr π-Extended dihydrophenazine based redox responsive polymers of intrinsic microporosity
title_full_unstemmed π-Extended dihydrophenazine based redox responsive polymers of intrinsic microporosity
title_sort π-Extended dihydrophenazine based redox responsive polymers of intrinsic microporosity
author_id_str_mv 0ae638b129bf53b1ba5162afa9374e08
a0ecf03ae879c40cd3740391e4af4f62
56aebf2bba457f395149bbecbfa6d3eb
author_id_fullname_str_mv 0ae638b129bf53b1ba5162afa9374e08_***_Caterina Bezzu
a0ecf03ae879c40cd3740391e4af4f62_***_YUE WU
56aebf2bba457f395149bbecbfa6d3eb_***_Mariolino Carta
author Caterina Bezzu
YUE WU
Mariolino Carta
author2 Caterina Bezzu
Beatrice Bartolomei
YUE WU
Martina Vaccaro
Mariagiulia Longo
Maria Penelope De Santo
Alessio Fuoco
Maurizio Prato
Mariolino Carta
Jacopo Dosso
format Journal article
container_title Journal of Materials Chemistry A
container_volume 13
container_issue 27
publishDate 2025
institution Swansea University
issn 2050-7488
2050-7496
doi_str_mv 10.1039/d5ta02477c
publisher Royal Society of Chemistry (RSC)
college_str Faculty of Science and Engineering
hierarchytype
hierarchy_top_id facultyofscienceandengineering
hierarchy_top_title Faculty of Science and Engineering
hierarchy_parent_id facultyofscienceandengineering
hierarchy_parent_title Faculty of Science and Engineering
department_str School of Engineering and Applied Sciences - Chemistry{{{_:::_}}}Faculty of Science and Engineering{{{_:::_}}}School of Engineering and Applied Sciences - Chemistry
document_store_str 1
active_str 0
description Redox-switchable Polymers of Intrinsic Microporosity (PIMs) are a promising yet underexplored class of materials. Here, we introduce π-extended dihydrophenazine-based PIMs for gas separation. The tert-butyl substituted Phen-PIM-1 stands out as a rare example of a redox-active switchable polymer with a high surface area (BET >600 m2 g−1) and excellent balance of porosity, pore size, and gas selectivity. Phen-PIM-1 is soluble in N-methyl pyrrolidone (NMP), enabling membrane fabrication, while the methyl-substituted Phen-PIM-2 is insoluble, highlighting the role of bulky tert-butyl groups (tBu) in solubility and film formation. Gas separation studies, performed on powder (IAST), demonstrate outstanding performance, with CO2/N2 selectivity up to 49. As a membrane material, Phen-PIM-1 shows competitive separation within the Robeson upper bound for several commercially important gas pairs, proving its potential for carbon capture and molecular sieving. Furthermore, these materials exhibit efficient and reversible redox switching upon chemical stimuli, leading to marked differences in properties and enhanced selectivity. This study establishes dihydrophenazine-based PIMs as a versatile platform for developing tunable, high-performance membranes for energy and environmental applications.
published_date 2025-06-03T06:47:46Z
_version_ 1851284066528133120
score 11.090362

Similar Items