聚酯纤维
生物量(生态学)
化学
冷凝
有机化学
生态学
物理
生物
热力学
作者
Yi Jing,Yuze Dai,Yuxuan Li,Yuhao Zhao,Yuanpeng Wu,Min Jiang,Guangyuan Zhou
出处
期刊:Chemsuschem
[Wiley]
日期:2024-02-10
卷期号:17 (12): e202301681-e202301681
被引量:3
标识
DOI:10.1002/cssc.202301681
摘要
Abstract A green and sustainable −COOH & −OH condensation solution polymerization method was hereby reported for FDCA‐based polyesters to avoid discoloration and toxic solvents. First, taking poly(ethylene 2,5‐furandicarboxylate) (PEF) as the representative of FDCA‐based polyester, enabling good white appearance PEF with M n =6.51×10 3 g mol −1 from FDCA and ethylene glycol in green solvent γ‐valerolactone (GVL), catalyzed by 4‐dimethylaminopyridine (DMAP) and N‐(3‐dimethylaminopropyl)‐N’‐ethylcarbodiimide hydrochloride (EDC). Additionally, the molecular weight of PEF was rapidly improved ( M n >2.5×10 4 g mol −1 ) via remelting polycondensation within minutes, with the dispersity still kept relatively low dispersity ( Đ <1.40). Importantly, the −COOH & −OH condensation solution polymerization method was successfully applied for the synthesis of various FDCA‐based polyesters, including diols with varying carbon chain lengths (3 to 11 carbons) and cycloalkyl diols, especially the applicability of this method to diols containing C=C double bonds, which was found to exhibit low heat resistance. Lastly, assisting with 13 C labeled 1,4‐succinic acid and in‐situ 13 C‐NMR, an in‐depth study of the possible catalytic mechanism was proposed, by which, EDC activated FDCA, and then DMAP catalyzed it with diol to yield macromolecular chain of polyester. Overall, the results provided a green and sustainable strategy for the synthesis of FDCA‐based polyesters.
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