溴甲基化法合成聚[2-甲氧基-5-(2’-乙基己氧基)对苯乙炔]

Poly(2-methoxy-5-(2'-ethylhexyloxy)-p-phenylene vinylene) synthesized by bromine methylation

以对甲氧基苯酚和溴代异辛烷为原料,经醚化、溴甲基化、脱溴化氢反应,成功合成聚[2-甲氧基-5-(2’-乙基己氧基)对苯乙炔](MEH-PPV),其数均分子量为5.7×104。利用傅立叶变换红外光谱(FTIR)、核磁共振波谱(1H-NMR)及紫外可见分光光谱(UV-Vis)对中间产物及MEH-PPV进行结构表征,结果表明,合成的中间产物和MEH-PPV分子结构与文献报道的一致。

poly[2-methoxy-5-（2＇-ethylhexyloxy）-p-phenylene vinylene]（MEH-PPV） was successfully synthesized using p-methoxy phenol and 1-bromo-2-ethylhexane through the reactions of etherification,bromine methylation and de-hydrogen bromide.The number average molecular weight of MEH-PPV was 5.7×10^4.The structure of intermediates and MEH-PPV were characterized by FTIR,1HNMRand UV-Vis.The results showed that the structure of intermediates and MEH-PPV was consistent with the reported in the literature.