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Comparative synthesis and properties of POSS-based fluorinated poly(ether sulfone) random terpolymers

机译：POSS基氟化聚醚砜无规三元共聚物的合成与性能比较

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Three series of poly(ether sulfone)s are synthesized from POSS via nucleophilic aromatic substitution polycondensation with different fluoride bisphenols. The structures of the PESs are characterized by IR, NMR and WAXD spectroscopy. The incorporation of POSS and trifluoromethyl into a poly(ether sulfone) matrix at various molar percentages of POSS result in a dramatic decrease in dielectric constant, dielectric loss as well as a significant increase in hydrophobicity of the system. The lowest dielectric constant 2.23 (1 MHz) is obtained at 40% DDSQ–6FPH–PES (molar percent content of DDSQ = 40%). The highest water contact angle 104° is obtained at 20% DDSQ–6AF–PES. Dielectric loss of most synthetic polymers is lower than 0.002. The number of trifluoromethyl groups and the attached position of these to the polymer chain also play essential roles in the dielectric properties, hydrophobicity and thermal properties. The results are discussed and interpreted in detail.
机译：通过POSS通过不同的氟化物双酚亲核芳香取代缩聚反应，从POSS中合成了三个系列的聚醚砜。 PES的结构通过IR，NMR和WAXD光谱进行表征。在POSS的各种摩尔百分比下，将POSS和三氟甲基掺入聚（醚砜）基质中会导致介电常数，介电损耗以及系统疏水性的显着降低。在40％DDSQ–6FPH–PES（DDSQ的摩尔百分含量= 40％）下获得最低的介电常数2.23（1 MHz）。在20％的DDSQ-6AF-PES时，可获得最高的水接触角104°。大多数合成聚合物的介电损耗低于0.002。三氟甲基的数目及其在聚合物链上的连接位置在介电性能，疏水性和热性能中也起着重要作用。结果进行了详细讨论和解释。

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