Synthesis and characterization of biodegradable palm palmitic acid based bioplastic
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Tarih
2021
Yazarlar
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
Erişim Hakkı
info:eu-repo/semantics/openAccess
Özet
This study involves the quantitative analysis of high free fatty acid crude palm oil, the separation of palmitic acid and synthesis\rof palm palmitic acid-based bioplastic. Synthesis of dimethyl 2-tetradecylmalonate (DMTDM) using methyl palmitate (MP) with sodium\rhydride (NaH) in the presence of reactive solvent of dimethyl carbonate (DMC) was carried out. The reaction conditions comprise at\ra mole ratio of MP: DMC: NaH: dimethylformamide (DMF) (0.1:2:0.25:1) at 60 °C for 14 h with 88.3 ± 1.4% yield. FTIR spectra of\rDMTDM showed the ester carbonyl group at 1740 cm–1. The polymerization of DMTDM with 1,6-hexandiol or 1,12-dodecandiol was\rcarried out using titanium (IV) isopropoxide $Ti(OiPr)_4$\r as the catalyst and reaction time of 24 h. The results showed that the poly(dodecyl\r2-tetradecylmalonte) (PDTDM) exhibited good thermal properties compared to poly(hexyl 2-tetradecylmalonte) (PHTDM). The\rincrease of the chain length of diol in PDTDM improved the thermal properties of polyester with glass transition, $T_g$\r of 13 ºC and\rmelting point of 51 ºC with a molecular weight of 12508 Da and polydispersity index (PDI) of 1.4. In general, the synthetic polyesters\rcan be used as internalplasticizer in bio-based industry
Açıklama
Anahtar Kelimeler
Kaynak
Turkish Journal of Chemistry
WoS Q Değeri
Scopus Q Değeri
Cilt
45
Sayı
3
