Synthesis of fluorinated poly(arylene ether)s with dibenzodioxin and spirobisindane units from new bis(pentafluorophenyl)- and bis(nonafluorobiphenyl)-containing monomers
作者:Ihor M. Tkachenko、Nikolay A. Belov、Yaroslav L. Kobzar、Andriy V. Dorokhin、Oleg V. Shekera、Victor P. Shantarovich、Valentin G. Bekeshev、Valery V. Shevchenko
DOI:10.1016/j.jfluchem.2017.01.008
日期:2017.3
and meta-connecting dihydroxyl-substituted compounds or tetrafluorobenzene- and 1,1,1,3,3,3-hexafluoropropane-based dihydroxyl-substituted compounds were synthesised. Fluorinated poly(arylene ether)s having perfluorinated aromatic units as well as both rigid dibenzodioxin and spirobisindane fragments were successfully obtained by interaction of the synthesized core-fluorinated monomers with 5,5′,6,6′-tetrahydroxy-3
基于六氟苯或十氟联苯以及对位和间位连接的二羟基取代化合物或四氟苯的新系列含4,4'-双(五氟苯基)和4,4'-双(九氟苯基)的单体和1合成了1,1,1,3,3,3-六氟丙烷基二羟基取代的化合物。通过合成的核心氟化单体与5,5',6,6'-四羟基-3,3,3的相互作用,成功获得了具有全氟芳族单元以及刚性二苯并二恶英和螺双双茚满片段的氟化聚亚芳基醚。 ′,3′-四甲基-1,1′-螺双茚满。制备的单体和聚合物的化学结构使用1 H,13 C,19确定F NMR和FTIR光谱技术。所有获得的聚合物完全溶于氯仿,四氢呋喃,二甲基甲酰胺和二甲基亚砜。衍生自含4,4'-双(九氟苯基)单体的聚合物具有在47,000-88,300范围内的较高平均分子量(M w),并能够形成坚固的溶剂铸膜。在所有氟化聚合物中,均在空气中(高达350°C)具有良好的热稳定性。Brunauer-Emmett-Teller比表面积和