Geomimetics for green polymer synthesis: highly ordered polyimides via hydrothermal techniques

dc.contributor.authorBaumgartner, Bettina
dc.contributor.authorBojdys, Michael J.
dc.contributor.authorUnterlass, Miriam M.
dc.date.accessioned2016-06-23T06:47:18Z
dc.date.available2016-06-23T06:47:18Z
dc.date.issued2014
dc.descriptionDieser Beitrag ist mit Zustimmung des Rechteinhabers aufgrund einer (DFG geförderten) Allianz- bzw. Nationallizenz frei zugänglich.de
dc.descriptionThis publication is with permission of the rights owner freely accessible due to an Alliance licence and a national licence (funded by the DFG, German Research Foundation) respectively.en
dc.description.abstractInspired by geological ore formation processes, we apply one-step hydrothermal (HT) polymerization to the toughest existing high-performance polymer, poly(p-phenyl pyromellitimide) (PPPI). We obtain highly-ordered and fully imidized PPPI as crystalline flakes and flowers on the micrometer scale. In contrast to classical 2-step procedures that require long reaction times and toxic solvents and catalysts, HT polymerization allows for full conversion in only 1 h at 200 °C, in nothing but hot water. Investigation of the crystal growth mechanismviascanning electron microscopy (SEM) suggests that PPPI aggregates formviaa dissolution–polymerization–crystallization process, which is uniquely facilitated by the reaction conditions in the HT regime. A conventionally prefabricated polyimide did not recrystallize hydrothermally, indicating that the HT polymerization and crystallization occur simultaneously. The obtained material shows excellent crystallinity and remarkable thermal stability (600 °C under N2) that stem from a combination of a strong, covalent polymer backbone and interchain hydrogen bonding.en
dc.identifier.eissn1759-9954
dc.identifier.urihttps://depositonce.tu-berlin.de/handle/11303/5602
dc.identifier.urihttp://dx.doi.org/10.14279/depositonce-5231
dc.language.isoen
dc.rights.urihttp://rightsstatements.org/vocab/InC/1.0/en
dc.subject.ddc540 Chemie und zugeordnete Wissenschaftende
dc.titleGeomimetics for green polymer synthesis: highly ordered polyimides via hydrothermal techniquesen
dc.typeArticleen
dc.type.versionpublishedVersionen
dcterms.bibliographicCitation.doi10.1039/c4py00263f
dcterms.bibliographicCitation.issue12
dcterms.bibliographicCitation.journaltitlePolymer chemistryen
dcterms.bibliographicCitation.originalpublishernameRoyal Society of Chemistryde
dcterms.bibliographicCitation.originalpublisherplaceCambridgede
dcterms.bibliographicCitation.pageend3776
dcterms.bibliographicCitation.pagestart3771
dcterms.bibliographicCitation.volume5
tub.accessrights.dnbdomain
tub.affiliationFak. 2 Mathematik und Naturwissenschaften::Inst. Chemie::FG Funktionsmaterialiende
tub.affiliation.facultyFak. 2 Mathematik und Naturwissenschaftende
tub.affiliation.groupFG Funktionsmaterialiende
tub.affiliation.instituteInst. Chemiede
tub.publisher.universityorinstitutionTechnische Universität Berlin

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