Tuning Ag/Co Metal Ion Composition to Control In Situ Nanoparticle Formation, Photochemical Behavior, and Magnetic–Dielectric Properties of UV–Cured Epoxy Diacrylate Nanocomposites
Gonul S. Batibay, Sureyya Aydin Yuksel, Meral Aydin, Nergis Arsu
TL;DR
This paper describes a method to create nanocomposites with metallic and oxide nanoparticles by adjusting the Ag/Co ion ratio during UV curing, enabling control over material properties for electronic applications.
Contribution
A reproducible in situ photochemical method to synthesize Ag and Co3O4 nanoparticles within a polymer matrix by tuning Ag+/Co2+ ratios.
Findings
Co3O4 nanoparticles enhance polymerization efficiency by aiding radical generation under UV light.
Ag nanoparticles reduce conversion due to competition with photoinitiator absorbance.
The nanocomposites show potential for energy storage and electromagnetic interference mitigation.
Abstract
In this study, we report a reproducible in situ photochemical method for the simultaneous synthesis of metallic and hybrid metal/metal oxide nanoparticles (NPs) within a UV–curable polymer matrix. A series of epoxy diacrylate-based formulations (BEA) was prepared, consisting of Epoxy diacrylate, Di(Ethylene glycol)ethyl ether acrylate (DEGEEA), and Phenylbis (2,4,6-trimethylbenzoyl) phosphine oxide (BAPO), which served as a Type I photoinitiator. These formulations were designed to enable the simultaneous photopolymerization and photoreduction of metal precursors at various Ag+/Co2+ ratios, resulting in nanocomposites containing in situ-formed Ag NPs, cobalt oxide NPs, and hybrid Ag–Co3O4 nanostructures. The photochemical, magnetic, and dielectric properties of the resulting nanocomposites were evaluated in comparison with those of the pure polymer using UV–Vis and Fourier Transform…
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Taxonomy
TopicsPhotopolymerization techniques and applications · Advanced Polymer Synthesis and Characterization · Polymer Nanocomposites and Properties