Preparation and characterization of transparent polyarylethers-silica hybrid membranes with covalently connected phases

作者: Wei Wei , Haibo Zhang , Shaowei Guan , Zhenhua Jiang , Xigui Yue

DOI: 10.1016/J.POLYMER.2012.08.059

关键词:

摘要: Abstract From the molecular designing point of view, (p-amino)phenylhydroquinone (APH) and (3, 5-dimethoxy)phenylhydroquinone (DMPH) were prepared in a two-step synthesis. Polyetheretherketone with large number amino groups (APEEK) polyethersulfone quantities hydroxyl side (HPES) successfully synthesized from these bisphenol monomers. The functionalized polyarylethers then grafted by isocyanatopropyltriethoxysilane (IPTS) through in-situ O -acylation reaction to obtained triethoxysilyl groups. Subsequently, hydrolyzed formed network produced covalent bonds between organic inorganic phases via sol–gel process under acid condition. Transparent polyarylether-silica (PAE-silica) hybrid films fabricated this process. Furthermore, tetraethylorthosilicate (TEOS) SiO 2 nanoparticles introduced as silica sources improve content silica. generated hydrolysis on IPTS modified was covalently connected substrates. present method achieved transparent at high 40 wt%, which resulted closely combination homogenous distribution particles polymer matrix.

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