Abstract Recently, substitution of primary resources by renewable alternatives is strongly concerned. With this stream, new environmental-friendly polyester is prepared using natural oleic acid and biomass resources, for the first time. A biomass (BM) waste mixture was subjected to liquification reaction with polyol, then the liquefied biomass (LBM) was reacted with natural oleic acid to get LBM-based polyester (PES-LBM). The exothermic properties showed longer period of curing that allows easier processing. PES-LBM has minimum emitted temperature during crosslinking, compared with other commercial types. FTIR emphasized liquification of biomass, and its reaction with oleic to form PES-LBM. XRD showed change in structure after reacting crystalline LBM with oleic acid getting polyester phase. The obtained PES-LBM polymer has improved thermal properties, due to thermal decomposition at higher temperatures with lower weight loss. DSC shows transitions of polyester segments. Furthermore, the hardness of PES-LBM is enhanced by 6.4 compared with the reference polymer taken. The characterization sentence approved the successful preparation of novel polyester with improved properties, as long as the environmental impact.
展开▼
