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Electrochemical activity of sulfur networks synthesized through RAFT polymerization

2016Journal article Restricted access
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dc.contributor.authorAlmeida, Carlos M.F.
dc.contributor.authorCosta, Hugo Davide
dc.contributor.authorKadhirvel, Porkodi
dc.contributor.authorQueiroz, Ana
dc.contributor.authorDias, Rolando
dc.contributor.authorCosta, Mário Rui
dc.date.accessioned2017-02-10T11:05:20Z
dc.date.available2017-02-10T11:05:20Z
dc.date.issued2016
dc.description.abstractNovel results concerning the inverse vulcanization of sulfur using reversible addition–fragmentation chain transfer (RAFT) polymerization are here reported. It is shown that RAFT polymerization can be used to carry out this cross-linking process, with the additional possibility to extend the reaction time from a few minutes as with classical free radical polymerization (FRP) to several hours. Higher control on viscosity and processability of the synthesized networks, as well as, the implementation of semibatch feed policies during cross-linking are important advantages of the RAFT process here explored comparatively to the FRP inverse vulcanization. Using cyclic voltammetry, it was assessed the electrochemical activity of the synthesized sulfur-rich polymer networks. It is shown that the fundamental electrochemical activity of the elemental sulfur was preserved in the produced materials. Testing of electrochemical cells assembled with lithium in the anode and different sulfur based materials in the cathode, including the synthesized RAFT networks, is also shown. The results here presented highlight the new opportunities introduced by reversible-deactivation radical polymerization mechanisms on the control of the synthesis process and in the design of such advanced materials and show also that many potential derivatizing possibilities can be achieved.pt_PT
dc.description.sponsorshipThe authors thank FCTand FEDER under Programme COMPETE (Project PEst-C/EQB/LA0020/2013), QREN, ON2, and FEDER (Project NORTE-07-0162-FEDER-000050), and QREN, ON2, and FEDER (Project NORTE-07-0124-FEDER-0000014—Polymer Reaction Engineering).We acknowledge TIMCAL Graphite & Carbon for supplying the conductive carbon C65. This work was also financially supported by Project POCI-01-0145-FEDER-006984 – Associate Laboratory LSRE/LCM funded by FEDER funds through COMPETE2020 – Programa Operacional Competitividade e Internacionalizac¸~ao (POCI) – and by national funds through FCT – Fundac¸~ao para a Ci^encia e a Tecnologia.pt_PT
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.citationAlmeida, Carlos; Costa, Hugo; Kadhirvel, Porkodi; Queiroz, A.M.; Dias, Rolando; Costa, Mário Rui (2016). Electrochemical activity of sulfur networks synthesized through RAFT polymerization. Journal of Applied Polymer Science. ISSN 0021-8995. 133:39pt_PT
dc.identifier.doiDOI: 10.1002/app.43993pt_PT
dc.identifier.issn0021-8995
dc.identifier.urihttp://hdl.handle.net/10198/13992
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.publisherWileypt_PT
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/pt_PT
dc.subjectBatteriespt_PT
dc.subjectCrosslinkingpt_PT
dc.subjectElectrochemistrypt_PT
dc.subjectFuel cellspt_PT
dc.subjectInverse-vulcanizationpt_PT
dc.subjectRAFT polymerizationpt_PT
dc.titleElectrochemical activity of sulfur networks synthesized through RAFT polymerizationpt_PT
dc.typejournal article
dspace.entity.typePublication
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/COMPETE/PEst-C%2FEQB%2FLA0020%2F2013/PT
oaire.citation.issue39pt_PT
oaire.citation.titleJournal of Applied Polymer Sciencept_PT
oaire.citation.volume133pt_PT
oaire.fundingStreamCOMPETE
person.familyNameQueiroz
person.familyNameDias
person.givenNameAna
person.givenNameRolando
person.identifier.ciencia-id2611-D40C-3472
person.identifier.ciencia-id8417-4D84-973B
person.identifier.orcid0000-0003-4761-0618
person.identifier.orcid0000-0001-7369-382X
person.identifier.ridO-8367-2015
person.identifier.ridM-8552-2013
person.identifier.scopus-author-id7102885104
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.nameFundação para a Ciência e a Tecnologia
rcaap.rightsrestrictedAccesspt_PT
rcaap.typearticlept_PT
relation.isAuthorOfPublication508436a2-5db1-481e-9c48-eab160333d61
relation.isAuthorOfPublicationd7109687-6adf-4268-a462-8d1a2e2c01cb
relation.isAuthorOfPublication.latestForDiscovery508436a2-5db1-481e-9c48-eab160333d61
relation.isProjectOfPublicatione843830d-c7d3-427f-9155-f20b821965fc
relation.isProjectOfPublication.latestForDiscoverye843830d-c7d3-427f-9155-f20b821965fc

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