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Please use this identifier to cite or link to this item: https://doi.org/10.21256/zhaw-28405
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dc.contributor.authorRomio, Matteo-
dc.contributor.authorGrob, Benjamin-
dc.contributor.authorTrachsel, Lucca-
dc.contributor.authorMattarei, Andrea-
dc.contributor.authorMorgese, Giulia-
dc.contributor.authorRamakrishna, Shivaprakash N.-
dc.contributor.authorNiccolai, Francesca-
dc.contributor.authorGuazzelli, Elisa-
dc.contributor.authorParadisi, Cristina-
dc.contributor.authorMartinelli, Elisa-
dc.contributor.authorSpencer, Nicholas D.-
dc.contributor.authorBenetti, Edmondo M.-
dc.date.accessioned2023-08-04T14:25:39Z-
dc.date.available2023-08-04T14:25:39Z-
dc.date.issued2021-11-05-
dc.identifier.issn0002-7863de_CH
dc.identifier.issn1520-5126de_CH
dc.identifier.urihttps://digitalcollection.zhaw.ch/handle/11475/28405-
dc.description.abstractMany synthetic polymers used to form polymer-brush films feature a main backbone with functional, oligomeric side chains. While the structure of such graft polymers mimics biomacromolecules to an extent, it lacks the monodispersity and structural purity present in nature. Here we demonstrate that side-chain heterogeneity within graft polymers significantly influences hydration and the occurrence of hydrophobic interactions in the subsequently formed brushes and consequently impacts fundamental interfacial properties. This is demonstrated for the case of poly(methacrylate)s (PMAs) presenting oligomeric side chains of different length (n) and dispersity. A precise tuning of brush structure was achieved by first synthesizing oligo(2-ethyl-2-oxazoline) methacrylates (OEOXMAs) by cationic ring-opening polymerization (CROP), subsequently purifying them into discrete macromonomers with distinct values of n by column chromatography, and finally obtaining poly[oligo(2-ethyl-2-oxazoline) methacrylate]s (POEOXMAs) by reversible addition-fragmentation chain-transfer (RAFT) polymerization. Assembly of POEOXMA on Au surfaces yielded graft polymer brushes with different side-chain dispersities and lengths, whose properties were thoroughly investigated by a combination of variable angle spectroscopic ellipsometry (VASE), quartz crystal microbalance with dissipation (QCMD), and atomic force microscopy (AFM) methods. Side-chain dispersity, or dispersity within brushes, leads to assemblies that are more hydrated, less adhesive, and more lubricious and biopassive compared to analogous films obtained from graft polymers characterized by a homogeneous structure.de_CH
dc.language.isoende_CH
dc.publisherAmerican Chemical Societyde_CH
dc.relation.ispartofJournal of the American Chemical Societyde_CH
dc.rightshttp://creativecommons.org/licenses/by/4.0/de_CH
dc.subjectAdsorptionde_CH
dc.subjectGoldde_CH
dc.subjectPhysical and chemical propertiesde_CH
dc.subjectPolymer brushesde_CH
dc.subjectPolymersde_CH
dc.subject.ddc540: Chemiede_CH
dc.subject.ddc620.11: Werkstoffede_CH
dc.titleDispersity within brushes plays a major role in determining their interfacial properties : the case of oligoxazoline-based graft polymersde_CH
dc.typeBeitrag in wissenschaftlicher Zeitschriftde_CH
dcterms.typeTextde_CH
zhaw.departementSchool of Engineeringde_CH
zhaw.organisationalunitInstitute of Materials and Process Engineering (IMPE)de_CH
dc.identifier.doi10.1021/jacs.1c08383de_CH
dc.identifier.doi10.21256/zhaw-28405-
dc.identifier.pmid34738797de_CH
zhaw.funding.euNode_CH
zhaw.issue45de_CH
zhaw.originated.zhawYesde_CH
zhaw.pages.end19077de_CH
zhaw.pages.start19067de_CH
zhaw.publication.statuspublishedVersionde_CH
zhaw.volume143de_CH
zhaw.publication.reviewPeer review (Publikation)de_CH
zhaw.author.additionalNode_CH
zhaw.display.portraitYesde_CH
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Romio, M., Grob, B., Trachsel, L., Mattarei, A., Morgese, G., Ramakrishna, S. N., Niccolai, F., Guazzelli, E., Paradisi, C., Martinelli, E., Spencer, N. D., & Benetti, E. M. (2021). Dispersity within brushes plays a major role in determining their interfacial properties : the case of oligoxazoline-based graft polymers. Journal of the American Chemical Society, 143(45), 19067–19077. https://doi.org/10.1021/jacs.1c08383
Romio, M. et al. (2021) ‘Dispersity within brushes plays a major role in determining their interfacial properties : the case of oligoxazoline-based graft polymers’, Journal of the American Chemical Society, 143(45), pp. 19067–19077. Available at: https://doi.org/10.1021/jacs.1c08383.
M. Romio et al., “Dispersity within brushes plays a major role in determining their interfacial properties : the case of oligoxazoline-based graft polymers,” Journal of the American Chemical Society, vol. 143, no. 45, pp. 19067–19077, Nov. 2021, doi: 10.1021/jacs.1c08383.
ROMIO, Matteo, Benjamin GROB, Lucca TRACHSEL, Andrea MATTAREI, Giulia MORGESE, Shivaprakash N. RAMAKRISHNA, Francesca NICCOLAI, Elisa GUAZZELLI, Cristina PARADISI, Elisa MARTINELLI, Nicholas D. SPENCER und Edmondo M. BENETTI, 2021. Dispersity within brushes plays a major role in determining their interfacial properties : the case of oligoxazoline-based graft polymers. Journal of the American Chemical Society. 5 November 2021. Bd. 143, Nr. 45, S. 19067–19077. DOI 10.1021/jacs.1c08383
Romio, Matteo, Benjamin Grob, Lucca Trachsel, Andrea Mattarei, Giulia Morgese, Shivaprakash N. Ramakrishna, Francesca Niccolai, et al. 2021. “Dispersity within Brushes Plays a Major Role in Determining Their Interfacial Properties : The Case of Oligoxazoline-Based Graft Polymers.” Journal of the American Chemical Society 143 (45): 19067–77. https://doi.org/10.1021/jacs.1c08383.
Romio, Matteo, et al. “Dispersity within Brushes Plays a Major Role in Determining Their Interfacial Properties : The Case of Oligoxazoline-Based Graft Polymers.” Journal of the American Chemical Society, vol. 143, no. 45, Nov. 2021, pp. 19067–77, https://doi.org/10.1021/jacs.1c08383.


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