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中科院宁波材料所朱锦研究员带领的生物基高分子材料团队通过以生物基芳香单体2,5-呋喃二甲酸与乙二醇共聚,采用熔融缩聚法,制备了一系列分子结构中呋喃环含量不同的生物基芳香聚酯——聚呋喃二甲酸乙二醇酯(PEF)(又称生物基PET),其特性黏数控制在0.75~0.98 d L/g之间。TGA和DSC研究表明,生物基芳香聚酯的Tg明显提高,PEF的Tg比PET提高了18℃,熔融温度降低了40℃,强度和模量提高了40%。材料气体阻隔性测试表明,PEF的CO2阻隔性比PET提高了14.8倍,O2阻隔性比PET提高了6.8倍。由于生物基芳香聚酯
Based on the bio-based aromatic monomer 2,5-furandicarboxylic acid and ethylene glycol, the team of bio-based polymer materials led by Zhu Jin, a researcher at Ningbo Materials Institute of Chinese Academy of Sciences, prepared a series of furan ring contents in molecular structure by melt polycondensation Different bio-based aromatic polyester-poly furan dicarboxylate (PEF) (also known as bio-based PET), the intrinsic viscosity control in 0.75 ~ 0.98 d L / g between. The results of TGA and DSC show that the Tg of bio-based aromatic polyester is obviously increased. The Tg of PEF is increased by 18 ℃ than that of PET, the melting temperature is decreased by 40 ℃ and the strength and modulus are increased by 40%. Gas barrier properties of the material showed that PEF exhibited 14.8 times more barrier to CO2 than PET and O2 had 6.8 times more barrier to PET than PET. Because of bio-based aromatic polyester