Decomposition mechanism of polyesters based on 2,5-furandicarboxylic acid and aliphatic diols with medium and long chain methylene groups

详细信息    查看全文

• 作者：Zoe Terzopoulou^a ; Vasilios Tsanaktsis^a ; Maria Nerantzaki^a ; George Z. Papageorgiou^b ; Dimitrios N. Bikiaris^a ; ^{dbic@chem.auth.gr" class="auth_mail" title="E-mail the corresponding author}
• 关键词：Poly(alkylene 2 ; 5-furan dicarboxylate) polyesters ; Biobased polyesters ; Thermal degradation ; Decomposition mechanism
• 刊名：Polymer Degradation and Stability
• 出版年：2016
• 出版时间：October 2016
• 年：2016
• 卷：132
• 期：Complete
• 页码：127-136
• 全文大小：1898 K

文摘

Three different polyesters have been synthesized using 2,5-dimethylfuran dicarboxylate (DMFD) and diols with 5, 6 and 9 methylene groups, namely poly(pentylene 2,5-furanoate) (PPeF), poly(hexylene 2,5-furanoate) (PHF) and poly(nonylene 2,5-furanoate) (PNF), respectively. These polyesters that can be prepared from monomers derived from renewable resources were synthesized by melt polycondensation technique. Their structure was confirmed by ¹H NMR spectroscopy. Thermal stability of polyesters was investigated using thermogravimetric analysis (TGA) and their decomposition mechanism was evaluated with Pyrolysis-Gas chromatography/Mass spectroscopy (Py–GC/MS). It was found that all polyesters decompose with a similar way and decomposition takes place mainly via β-hydrogen bond scission and less extensive with homolytic scission.