Synthesis and Application of Triketone-Based Vitrimers and Nanocomposites for Engineering Thermoplastic Blends | ||
| Egyptian Journal of Chemistry | ||
| Volume 68, Issue 13, December 2025, Pages 995-1007 PDF (2.93 M) | ||
| Document Type: Original Article | ||
| DOI: 10.21608/ejchem.2025.375299.11605 | ||
| Authors | ||
| Khloud M. K. Omar* 1; Marwa S. Hany2, 3; Wael S. I. Abou-Elmagd4; Amna Ramzy5 | ||
| 1Chemical Administration Centre, Cairo, Egypt | ||
| 2Pharmaceutical Chemistry Department, Faculty of Pharmacy and Biotechnology, German University in Cairo, Egypt | ||
| 3Faculty of Biotechnology and Faculty of Pharmaceutical Engineering, German International University, Egypt | ||
| 4Chemistry Department, Faculty of Sciences, Ain Shams University, Egypt | ||
| 5Materials Engineering Department, Faculty of Engineering and Materials Science, German University in Cairo, Egypt | ||
| Abstract | ||
| Vitrimers combine the processability of thermoplastics with the strength and durability of thermosets through dynamic covalent bonds, enabling reshaping, repair, and recycling—key features for sustainable material systems. This study presents the synthesis of novel vitrimers based on triketone (TK) structures for advanced engineering applications. TK-based monomers were employed to prepare polydiketone (PDK) vitrimers and their corresponding nanocomposites. Structural variants derived from Azelaic acid (TK-AZ), Glutaric acid (TK-G), and Adipic acid (TK-AD) were synthesized and compared, along with their PDK counterparts. Among these, PDK-TK-G and its CNT nanocomposite demonstrated the highest glass transition temperatures (Tg), reaching 134.8 °C and 120.6 °C, respectively. These vitrimers exhibit excellent thermal processability and compatibility with thermoplastics. When incorporated into polyvinyl chloride (PVC) blends, PDK-TK-G increased the Tg of PVC from 86.37 °C to 141.45 °C, significantly enhancing its thermal stability. The resulting vitrimers, composites, and polymer blends were thoroughly characterized for thermal and chemical performance. This novel method enhances the thermal stability of PVC and substantially increases its suitability for diverse engineering applications, especially those demanding high heat resistance. This work contributes directly Industry and Innovation by fostering next-generation material technologies, and resource-efficient manufacturing. | ||
| Keywords | ||
| Vitrimer; Thermosets; Thermoplastics; Triketone; Polydiketone; PVC | ||
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