TY - JOUR
T1 - Light–induced Self–Writing of polymer composites
T2 - A novel approach to develop core–shell–type structures
AU - Wellington, Nathaniel
AU - Pathreeker, Shreyas
AU - Hosein, Ian D.
N1 - Funding Information:
The authors gratefully acknowledge financial support from the National Science Foundation (NSF) under CAREER award number CMMI–1751621 . The authors also acknowledge financial support from the 3M Foundation (NTFA), and the College of Engineering and Computer Science at Syracuse University , NY.
Publisher Copyright:
© 2022 Elsevier Ltd
PY - 2022/2
Y1 - 2022/2
N2 - 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.
AB - 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.
KW - Magnetic nanoparticles
KW - Phase–separation
KW - Photopolymerization
KW - Polymer–nanoparticle composite
KW - Raman spectroscopy
KW - Vertically–aligned pillars
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U2 - 10.1016/j.coco.2022.101058
DO - 10.1016/j.coco.2022.101058
M3 - Article
AN - SCOPUS:85122707911
SN - 2452-2139
VL - 30
JO - Composites Communications
JF - Composites Communications
M1 - 101058
ER -