Abstract
This research reports the synthesis and characterization of photo-responsive polyvinyl alcohol (PVA) based polymer nanocomposites doped with coumarin-based nanoparticles. The composites were prepared using a one-step, sustainable, and efficient method. The photo-responsive behaviour of the nanocomposites was based on the reversible [2 + 2] cycloadditions of coumarin moieties, which allowed for reversible changes in the material's properties in response to light stimuli. The composites also exhibited excellent UV shielding properties, making them suitable for various applications, including UV-resistant coatings. This study provides a novel approach to developing sustainable, photo-responsive materials for various applications.
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