当前位置: X-MOL 学术Polym. Degrad. Stabil. › 论文详情
Our official English website, www.x-mol.net, welcomes your feedback! (Note: you will need to create a separate account there.)
Synthesis and characterization of novel poly(ethylene furanoate-co-adipate) random copolyesters with enhanced biodegradability
Polymer Degradation and Stability ( IF 6.3 ) Pub Date : 2018-08-09 , DOI: 10.1016/j.polymdegradstab.2018.08.002
Lazaros Papadopoulos , Andreas Magaziotis , Maria Nerantzaki , Zoi Terzopoulou , George Z. Papageorgiou , Dimitrios N. Bikiaris

In this study, copolymers based on poly(ethylene furanoate) (PEF) and poly(ethylene adipate) (PEAd) were synthesized by melt polycondensation using 2,5-dimethyl furan dicarboxylate (DMFD), adipic acid (AA) and ethylene glycol (EG) in different proportions. The success of the reaction, crystallographic characteristics, molecular weight and thermal properties were determined with Nuclear Magnetic Resonance Spectroscopy (1H NMR), Infrared Spectroscopy (FTIR), X-ray Diffraction (XRD), Differential Scanning Calorimetry (DSC) and Thermogravimetric Analysis (TGA). The results confirm the successful synthesis of random copolymers, with high thermal stability, which exceeds 300 °C. Also, isodimorphic cocrystallization was concluded from both XRD patterns and DSC thermograms. The enzymatic hydrolysis rate of the copolyesters depended on comonomer ratio. Copolymers with 95 and 90 mol% of ethylene adipate (EAd) were completely degraded after 30 days.



中文翻译:

具有增强的生物降解性的新型聚呋喃乙烯酸酯-己二酸酯-共-己二酸酯)无规共聚酯的合成与表征

在这项研究中,使用2,5-二甲基呋喃二甲酸二甲酯(DMFD),己二酸(AA)和乙二醇( EG)以不同的比例。反应的成功程度,晶体学特征,分子量和热性质用核磁共振波谱法(1H NMR),红外光谱(FTIR),X射线衍射(XRD),差示扫描量热法(DSC)和热重分析(TGA)。结果证实成功合成了无规共聚物,具有超过300°C的高热稳定性。同样,从XRD图谱和DSC热谱图得出了同晶相共结晶。共聚酯的酶促水解速率取决于共聚单体的比例。30天后,含有95和90 mol%的己二酸乙二酯(EAd)的共聚物完全降解。

更新日期:2018-08-09
down
wechat
bug