Matos Marina, Sousa Andreia F, Mendonça Patrícia V, Silvestre Armando J D
CICECO and Department of Chemistry, University of Aveiro, 3810-193 Aveiro, Portugal.
CEMMPRE, Department of Chemical Engineering, University of Coimbra, Rua Sílvio Lima, Pólo II, 3030-790 Coimbra, Portugal.
Materials (Basel). 2019 Jan 21;12(2):328. doi: 10.3390/ma12020328.
Poly(ether ester)s (PEEs) represent a promising class of segmented co-polymers, nevertheless the synthesis of PEEs based on renewable 2,5-furandicarboxylic acid (FDCA) is still scarce. In this context, a series of poly(1,4-butylene 2,5-furandicarboxylate)--poly(poly(propylene oxide) 2,5-furandicarboxylate) co-polyesters with different composition of stiff poly(1,4-butylene 2,5-furandicarboxylate) (PBF) and soft poly(poly(propylene oxide) 2,5-furandicarboxylate) (PPOF) moieties were synthesized, via a two-step bulk polytransesterification reaction. The molar ratio of PBF/PPOF incorporated was varied (10 to 50 mol%) in order to prepare several novel materials with tuned properties. The materials were characterised in detail through several techniques, namely ATR FTIR, ¹H and C NMR, TGA, DSC, DMTA and XRD. Their hydrolytic and enzymatic degradation evaluation was also assessed. These new co-polymers showed either a semi-crystalline nature when higher PBF/PPOF ratios were used, and for approximately equal amounts of PBF and PPOF an amorphous co-polyester was obtained instead.
聚（醚酯）（PEEs）是一类很有前景的嵌段共聚物，然而基于可再生的2,5-呋喃二甲酸（FDCA）合成聚（醚酯）的研究仍然很少。在此背景下，通过两步本体酯交换反应合成了一系列具有不同组成的刚性聚（1,4-丁二醇2,5-呋喃二甲酸酯）-聚（聚环氧丙烷2,5-呋喃二甲酸酯）共聚酯，其中刚性聚（1,4-丁二醇2,5-呋喃二甲酸酯）（PBF）和柔性聚（聚环氧丙烷2,5-呋喃二甲酸酯）（PPOF）部分的比例不同。为了制备几种具有可调性能的新型材料，改变了PBF/PPOF的摩尔比（10%至50%摩尔）。通过多种技术对材料进行了详细表征，即衰减全反射傅里叶变换红外光谱（ATR FTIR）、¹H和¹³C核磁共振（NMR）、热重分析（TGA）、差示扫描量热法（DSC）、动态热机械分析（DMTA）和X射线衍射（XRD）。还评估了它们的水解和酶促降解性能。当使用较高的PBF/PPOF比例时，这些新型共聚物表现出半结晶性质，而当PBF和PPOF的量大致相等时，则得到一种无定形共聚酯。
