Synthesis and characterization of highly fluorinated poly(phthalazinone ether)s based on AB-type monomers
作者:Xiuhua Li、Yan Gao、Qiang Long、Allan S. Hay
DOI:10.1002/pola.27199
日期:2014.6.15
Four different fluorinated methyl‐ and phenyl‐substituted 4‐(4‐hydroxyphenyl)‐2‐(pentafluorophenyl)‐phthalazin‐1(2H)‐ones, AB‐type phthalazinone monomers, have been successfully synthesized by nucleophilic addition–elimination reactions of methyl‐ and phenyl‐substituted 2‐((4‐hydroxy)benzoyl)benzoic acid with 1‐(pentafluorophenyl)hydrazine. Under mild reaction conditions, the AB‐type monomers underwent
通过甲基的亲核加成-消除反应成功地合成了四种不同的氟化甲基和苯基取代的4-(4-羟基苯基)-2-(五氟苯基)酞嗪-1(2H)-酮,AB型酞嗪酮单体。 -和苯基取代的2-((4-羟基)苯甲酰基)苯甲酸与1-(五氟苯基)肼 在温和的反应条件下,AB型单体成功地进行了自缩聚反应,并得到了高分子量的氟化聚(酞嗪酮醚)。AB型单体和氟化聚合物的详细结构表征通过1 H NMR测定,19F NMR,FTIR和GPC。评价了聚合物的溶解度,热性能,机械性能,水接触角和光吸收。该聚合物的高T g s为337至349°C,分解温度为(T d,25重量%)高于409°C。用THF和氯仿溶液流延制成坚韧的柔性薄膜。该膜表现出优异的拉伸强度,范围从70到85 MPa,具有良好的疏水性,水接触角高于95.5°C。聚合物的吸收边低于340 nm,在500-2500 nm的较高波长下,每厘米的吸收率非常低。这些结果表明,