Akademik Veri Yönetim Sistemi
CHEMISTRYSELECT, cilt.10, sa.47, 2025 (SCI-Expanded, Scopus)
In this study, inspired by inorganic-based phosphate esters with high fire resistance, an additive material Hexakis(methoxyethoxyethoxy)cyclotriphosphazene (F-PEGME) was synthesized under laboratory conditions by binding hexachlorocyclotriphosphazene to poly(ethylene glycol) mono methyl ether. It is characterized using 1H-NMR, 31P-NMR, and FTIR spectroscopy. Then, it was incorporated into P(3HB-co-4HB) matrix to improve overall material performance. Composite films were fabricated via solution casting in two polymer content groups: 1% and 5% (w/v). For each group, F-PEGME was added at 10%, 20%, and 30% (w/w) to investigate its concentration-dependent effects. The structural characteristics of fabricated films were examined using Fourier-transform infrared (FTIR) spectroscopy, while their thermal behavior and transitions were assessed using thermogravimetric analysis (TGA) and differential scanning calorimetry (DSC). Mechanical performance and flammability were evaluated using tensile and UL-94 tests, respectively. FTIR analyses confirmed the successful incorporation of F-PEGME. TGA, and DSC analyses revealed a decrease in thermal stability with increasing additive content. Tensile testing revealed a slight decrease in strength but an improvement in elongation at maximum load. Composite films showed a significant improvement in flame retardancy, particularly in films containing higher F-PEGME concentrations (30%). These results suggest that F-PEGME may be a promising additive for enhancing the multifunctional performance of PHA-based materials.