We have found that by the inclusion of a conjugated spacer it is possible to synthesise a poly(l,4-phenylenevinylene) derivative with an electron-withdrawing group attached directly from the substituted monomer. We describe a route for the synthesis of an electronically asymmetric styryl-derivatised poly(l,4-phenylenevinylene). The preparation was achieved in two steps from the nitrostyryl-substituted arylenedimethylene bisbromo monomer 13. In the first step, base-induced polymerisation of 13 afforded the soluble and processible precursor polymer 14. The precursor polymer 14 could then be converted in the second step to the insoluble and unprocessible conjugated polymer 15 by thermal treatment in the solid state.
我们发现,通过加入共轭间隔物,可以从取代单体合成带有电子吸引基团的聚 (l,4-
苯乙烯) 衍
生物。我们描述了一条合成电子不对称的 styryl 取代的聚 (l,4-
苯乙烯) 的路线。该制备通过两步从硝基 styryl 取代的
芳烃二亚甲基双
溴单体 13 实现。在第一步中,碱催化聚合 13 得到了可溶且可加工的前体聚合物 14。然后,在第二步中,前体聚合物 14 可以通过固态热处理转化为不溶且不可加工的共轭聚合物 15。