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우수논문발표상 응모자Polarity-Switchable Maleic Anhydride Copolymer Coatings for Enhanced Microplastic Capture in Water Filters
발표자최윤영 (부산대학교)
연구책임자김채빈 (부산대학교)
Abstract
Microplastics are widespread aquatic contaminants, yet conventional size-exclusion membrane filters show limited capture efficiency. Thin adhesive layers have been used to improve performance, but typically require toxic organic solvents. Here, we present a polarity-switchable adhesive copolymer containing maleic anhydride (MA). Upon base treatment, the copolymer becomes hydrophilic and water/ethanol-soluble; subsequent heat triggers ring closure, restoring hydrophobicity and forming a stable adhesive layer under aqueous conditions. This eco-friendly, solvent-free coating enhances microplastic capture and enables odorless, large-scale spray application. The reversible polarity-switching mechanism also offers a sustainable route for filter recycling.