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Poly(ether ketone azomethane)s and poly(ether ketone imide)s containing naphthylene moieties
Authors:Ming Zhu  Xiao Liu  Baijun Liu  Zhenhuan Jiang  Toshihiko Matsumoto
Affiliation:(1) Alan G. MacDiarmid Institute, Jilin University, Changchun, 130012, People’s Republic of China;(2) Center for Nano Science and Technology, Tokyo Polytechnic University, Atsugi Kanagawa, 243-0297, Japan;
Abstract:A new diamine monomer, 1,5-bis4-(4-aminophenoxy)]benzoyl-2,6-dimethoxynaphthalene, was synthesized via a Friedel–Crafts acylation reaction followed by an aromatic nucleophilic substitution reaction. Six ether–ketone linked polymers, named as poly(ether ketone azomethane)s and poly(ether ketone imide)s, were successfully prepared through the polycondensations of the diamine monomer with dialdehydes and dianhydrides, respectively. These naphthylated polymers exhibited high T g values (142–288 °C), due to their bulky and rigid chemical structure. Meanwhile, they showed good thermal stability and improved solubility. Typically, some of them were casted into thin flexible film and showed high moduli.
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