Light–induced Self–Writing of polymer composites: A novel approach to develop core–shell–type structures

Nathaniel Wellington, Shreyas Pathreeker, Ian D. Hosein

Research output: Contribution to journalArticlepeer-review

1 Scopus citations

Abstract

We employ the Light–Induced Self–Writing (LISW) technique to fabricate vertically–aligned polymer composite microstructures with core–shell morphology. Nanoparticle (NP) organization occurs simultaneously with the structure growth, to form a distinct NP-rich ‘shell’ layer, and ‘core’ polymer solid. Photopolymerization–driven NP phase–separation was confirmed using in–situ Raman spectroscopy as well as ex–situ morphology analysis with EDS mapping. The microstructure array obtained consists of uniformly spaced, ∼250 μm tall ‘pillars’ that possess exemplary core–shell morphologies. Our results indicate that LISW is a highly attractive materials fabrication technique towards the development of polymer composite structures.

Original languageEnglish (US)
Article number101058
JournalComposites Communications
Volume30
DOIs
StatePublished - Feb 2022

Keywords

  • Magnetic nanoparticles
  • Phase–separation
  • Photopolymerization
  • Polymer–nanoparticle composite
  • Raman spectroscopy
  • Vertically–aligned pillars

ASJC Scopus subject areas

  • Ceramics and Composites
  • Mechanics of Materials
  • Polymers and Plastics
  • Materials Chemistry

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