About this Abstract |
| Meeting |
2026 TMS Annual Meeting & Exhibition
|
| Symposium
|
Biosustainable Materials for a Circular Economy
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| Presentation Title |
Biobased Polyurethane from Rubber Seed Oil: Synthesis, Characterization, and Performance Comparison with Petroleum-Based Counterpart |
| Author(s) |
Nyaknno Udo Udokpoh, Felix Okieimen, Efosa Obazee |
| On-Site Speaker (Planned) |
Nyaknno Udo Udokpoh |
| Abstract Scope |
This study reports the experimental synthesis and characterization of a fully bio-based thermoplastic polyurethane (PU) derived from rubber seed oil (RSO). RSO was modified via epoxidation and oxirane ring-opening to produce polyol precursors, while bio-based polyisocyanate was synthesized using the Çaylı and Küsefoğlu method. A petroleum-based PU was also prepared using commercial polyol and methylene diphenyl diisocyanate (MDI) for comparison. FTIR confirmed urethane linkages in both systems. The bio-based PU showed an onset degradation temperature of 285 °C (vs. 305 °C), a Tg of −15 °C (vs. −8 °C), and tensile strength of 8.2 MPa with 230% elongation at break (vs. 9.5 MPa and 210%). With favorable thermal and mechanical properties, the bio-based PU exhibits strong potential in flexible packaging, footwear, coatings, and consumer products. This work demonstrates the viability of rubber seed oil as a renewable feedstock for PU production and supports sustainable materials development. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Biomaterials, Characterization, Polymers |