The synthesis and subsequent polymerization of highly aromatized phthalonile monomers which contain phenoxy linkages having a substantially aromatic spacer moiety between the two terminal phthalonitrile groups is disclosed. The phthalonitriles are synthesized by a nucleophilic displacement of a nitro substituent, which is activated by the ring cyano groups on the aromatic ring, by a phenoxide containing unit. The phthalocyanine polymers have improved toughness, low water absorptivity and higher thermal and oxidative resistance than currently available polymers.
本文披露了高度芳香化的邻苯二
酰亚胺单体的合成和随后的聚合,其中包含苯氧键,两个末端邻苯二腈基团之间具有实质上芳香性的间隔基团。通过苯氧基含有单元的亲核取代,使环
氰基上的环
氰基团被激活的硝基取代。相比当前可用的聚合物,邻苯二腈聚合物具有改善的韧性、低吸
水性和更高的热稳定性和氧化抗性。