Recently, great interest has been in synthesizing polymers containing fluorine atoms. Fluorinated polymers exhibit high hydrophobicity, low surface energy, good thermal stability, excellent dielectric properties, low water absorption, and good chemical resistance. This work illustrates the synthesis, characterization, and properties of a new fluorinated aromatic polyester. Poly(fluoromandelic acid) (PFMA). PFMA is a new polymer with multiple fluorine atoms on the polymer chain. Simple heating of 4-fluoromandelic acid, without a solvent or a catalyst, under controlled conditions leads to poly(fluoromandelic acid). The reaction runs in the solid state by the elimination of water. The structure of the resulting poly(fluoromandelic acid) consists mainly of a polyester backbone decorated with p-fluorophenyl groups and has carboxyl and hydroxyl groups at the ends of the polymer chain. Mass spectrometry, solid-state ¹³C nuclear magnetic resonance (¹³C ss-NMR), liquid NMR, Fourier-transform infrared spectroscopy (FTIR), and Raman spectroscopy elucidated the polymer chain structure. The thermal stability of the polymer was also studied, and the melting point was determined from the differential scanning calorimetry. In the case of poly(fluoromandelic acid), the thermal conductivities and diffusivity were measured by the transient plane source (TPS) technique, also referred to as the Hot Disk method. The thermal conductivity measured at different temperatures will also be discussed in relation to the structure of the analyzed polymer as correlated with the crystallinity of the polymer structure determined by XRD diffraction. It was also shown that the new fluorinated aromatic polyester exhibited remarkable hydrophobicity.

最近，人们对合成含氟原子的聚合物产生了极大的兴趣。氟化聚合物表现出高疏水性、低表面能、良好的热稳定性、优异的介电性能、低吸水性和良好的耐化学性。这项工作阐述了新型氟化芳香族聚酯的合成、表征和性能。聚（氟扁桃酸）（PFMA）。PFMA是一种聚合物链上含有多个氟原子的新型聚合物。在受控条件下，在没有溶剂或催化剂的情况下，简单加热 4-氟扁桃酸即可产生聚（氟扁桃酸）。通过消除水，反应在固态下进行。所得聚（氟扁桃酸）的结构主要由聚酯骨架组成，聚酯骨架上装饰有p-氟苯基并且在聚合物链的末端具有羧基和羟基。质谱、固态¹³ C 核磁共振 ( ¹³ C ss-NMR）、液体核磁共振、傅里叶变换红外光谱（FTIR）和拉曼光谱阐明了聚合物链结构。还研究了聚合物的热稳定性，并通过差示扫描量热法测定了熔点。对于聚（氟扁桃酸），热导率和扩散率通过瞬态平面源（TPS）技术（也称为热盘法）测量。还将讨论在不同温度下测量的热导率与所分析聚合物的结构的关系，该结构与通过 XRD 衍射确定的聚合物结构的结晶度相关。研究还表明，新型氟化芳香族聚酯表现出显着的疏水性。