Spiropyran-Containing PDMS Coatings for Self-Cleaning, UV Shielding, and Tunable Transparency
Journal of Applied Polymer Science, 2026 (SCI-Expanded, Scopus)
- Yayın Türü: Makale / Tam Makale
- Basım Tarihi: 2026
- Doi Numarası: 10.1002/app.71634
- Dergi Adı: Journal of Applied Polymer Science
- Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus, Aerospace Database, Applied Science & Technology Source, Chemical Abstracts Core, Chimica, Compendex, INSPEC, Materials Science & Engineering Collection (ProQuest), Technology Collection (ProQuest)
- Anahtar Kelimeler: self-cleaning, slippery surfaces, spiropyran, tunable transparency, UV shielding
- Ankara Hacı Bayram Veli Üniversitesi Adresli: Evet
Özet
Glass surfaces commonly exhibited contamination, limited UV protection, and excessive solar transmission, which restrict their performance in advanced applications. Developing multifunctional coatings that integrate self-cleaning, UV shielding, and tunable optical properties remains challenging, particularly through a scalable and fluorine-free approach. Herein, we report a smart slippery coating based on a spiropyran-functionalized PDMS/silicone oil matrix, fabricated via a simple one step spray coating method. The coatings exhibited high transmittance (> 81%) and UV shielding efficiency (61.19%). Upon irradiation, reversible spiropyran to merocyanine isomerization enables dynamic modulation of visible light transmittance, resulting in a 20.06% reduction in luminous transmittance. The coatings demonstrated notable chemical, mechanical, and UV durability, maintaining stable wettability performance under harsh environmental conditions. The low surface free energy (28.93 mJ m−2) of the coatings promoted effective self-cleaning against various contaminants. These findings demonstrate a scalable and fluorine-free method for fabricating photoresponsive coatings that self-regulate light transmission without external energy input, highlighting their strong potential for smart-window applications.