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Programming of temperature-memory onsets in a semicrystalline polyurethane elastomer

  • We demonstrate that phase-segregated poly(ester urethane) (PEU) with crystallizable switching segments of poly(1,4-butylene adipate) (PBA) excels as high-performance temperature-memory polymer. Temperature-memory effects (TMEs) with regard to strain and stress recovering could be programmed by polymer elongation at temperatures below or within the PBA melting transition, followed by cooling under constant stress below the PBA crystallization transition and unloading. Beyond that conventional approach, a novel TME programming route was designed, mostly consisting in specimen elongation and unloading at the same temperature. As a result, an enhanced control over the onsets of strain and stress recovering could be achieved. With these findings, the TME could be exploited to switch quick response (QR) codes in recently developed information carriers from unreadable to readable. We conjecture that such behavior can be programmed into virtually all semicrystalline elastomers and anticipateWe demonstrate that phase-segregated poly(ester urethane) (PEU) with crystallizable switching segments of poly(1,4-butylene adipate) (PBA) excels as high-performance temperature-memory polymer. Temperature-memory effects (TMEs) with regard to strain and stress recovering could be programmed by polymer elongation at temperatures below or within the PBA melting transition, followed by cooling under constant stress below the PBA crystallization transition and unloading. Beyond that conventional approach, a novel TME programming route was designed, mostly consisting in specimen elongation and unloading at the same temperature. As a result, an enhanced control over the onsets of strain and stress recovering could be achieved. With these findings, the TME could be exploited to switch quick response (QR) codes in recently developed information carriers from unreadable to readable. We conjecture that such behavior can be programmed into virtually all semicrystalline elastomers and anticipate applicability as label technology to monitor temperature abuse of food and pharmaceuticals.zeige mehrzeige weniger

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Metadaten
Autor*innen:Nikolaus Mirtschin, Thorsten Pretsch
Dokumenttyp:Zeitschriftenartikel
Veröffentlichungsform:Verlagsliteratur
Sprache:Englisch
Titel des übergeordneten Werkes (Englisch):Macromolecules
Jahr der Erstveröffentlichung:2014
Verlag:American Chemical Society
Verlagsort:Washington, DC
Jahrgang/Band:47
Ausgabe/Heft:17
Erste Seite:5952
Letzte Seite:5959
Freie Schlagwörter:Information carrier; Poly(ester urethane); Programming; QR code carrier; Shape memory polymer; Supervising; Temperature monitoring label; Temperature-memory effect; Thermo-responsiveness; cold chain; technology
DOI:10.1021/ma501171p
ISSN:0024-9297
ISSN:1520-5835
Bemerkung:
Geburtsname von Mirtschin, Nikolaus: Fritzsche, N. -  Birth name of Mirtschin, Nikolaus: Fritzsche, N.
Verfügbarkeit des Dokuments:Datei im Netzwerk der BAM verfügbar ("Closed Access")
Datum der Freischaltung:20.02.2016
Referierte Publikation:Ja
Datum der Eintragung als referierte Publikation:18.09.2014
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