Enhanced Molecular Alignment in Poly‐ l ‐Lactic Acid Nanotubes Induced via Melt‐Press Template‐Wetting

Abstract: Molecular ordering in polymers can have a drastic effect on their properties and can be used to induce or enhance functionality. In the case of poly‐l‐lactic acid (PLLA), which is a widely used polymer in biomedicine, sensors, and actuators, preferential orientation of chains can lead to significantly enhanced electromechanical properties. In this context, template‐wetting is a straightforward method of producing polymer nanostructures, which can lead to some degree of molecular order in the polymer. Template‐wetting of PLLA has not been fully explored, especially in terms of morphological and/or structural characterization. In this work, PLLA nanotubes are grown via a modification of the template‐wetting process, referred to here as melt‐press template‐wetting. The nanotubes are thoroughly characterized with wide‐angle X‐ray diffraction, isothermal differential scanning calorimetry, and polarized light optical microscopy. This characterization indicates that the polymer chains in these PLLA nanotubes are aligned parallel to the cylindrical axis of the nanotube, which may be beneficial in certain applications.

Standort
Deutsche Nationalbibliothek Frankfurt am Main
Umfang
Online-Ressource
Sprache
Englisch

Erschienen in
Enhanced Molecular Alignment in Poly‐ l ‐Lactic Acid Nanotubes Induced via Melt‐Press Template‐Wetting ; volume:304 ; number:3 ; year:2019 ; extent:10
Macromolecular materials and engineering ; 304, Heft 3 (2019) (gesamt 10)

Urheber
Smith, Michael
Lindackers, Cathrin
McCarthy, Kevin
Kar‐Narayan, Sohini

DOI
10.1002/mame.201800607
URN
urn:nbn:de:101:1-2022080208222693358989
Rechteinformation
Open Access; Der Zugriff auf das Objekt ist unbeschränkt möglich.
Letzte Aktualisierung
15.08.2025, 07:25 MESZ

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Beteiligte

  • Smith, Michael
  • Lindackers, Cathrin
  • McCarthy, Kevin
  • Kar‐Narayan, Sohini

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