N-(p-乙烯氧基苯基)咔唑的合成和聚合

本文是含咔唑化合物及其聚合物系列研究的一部分,以对-溴苯酚为原料,经过乙烯基醚化,再同咔唑反应、合成了新的单体,N-(p-乙烯氧基苯基)咔唑(NEOPC),经过元素分析、NMR和IR等对NEOPC进行分析鉴定,研究了它的聚合行为。     

N-(p-乙烯氧基苯基)咔唑的合成和聚合

N-(p-Ethenyloxyphenyl) carbazole (NEOPC) has been synthesized by etherification of p-bromophenol with vinyl acetate, then p-bromophenyl vinyl ether reacting with carbaxole in the presence of brass power and potassium carbonate at 200℃. The product was identified by elemental analysis, ¹H NMR, ¹³C NMR and IR spectra. NEOPC is readily polymerized by conventional catalysts of cationic polymerization, such as BF₃OEt₂, I₂, TiCl₄, AlCl₃, etc. But no polymer was obtained when free radical initiators were used. The rearrangement products and/or the solvent-insoluble products in cationic polymerization of NEOPC. which may be produced by the crosslinking have been discussed.     

关于碱土金属硫化物溶解性的探讨

中学化学教材中,BaS, CaS和MgS 3种盐的溶解性自80年代以来有两种不同的处理方法。