Abstract:

Poly (β-alkoxy,naphthalene vinylene) (PAONV) was synthesized from β-naphthol and H(CH2)mBr(m=4,6,8,9) under ultrasonic irradiation.The influences of reaction conditions on the yield of intermediates and polymers were studied.The structure of intermediates and polymers were characterized with IR and 1H NMR spectroscopy.These results showed that the total yield of PAONV under ultrasonic irradiation was 70.0%—74.4%，higher than that under reflux stirring.The reaction time was shortened from 35 h to 20 h.The yield of etherification in the C2H5ONa system was higher than that in the NaOH system.The dimetyl sufoxide as a strong polar solvent favored the yield of dehydrochlorination.The best reaction times of etherification, chloromethylation, dehydrochlorination were 5 h,5 h,10 h,respectively.

摘要： 用β-萘酚、H(CH2)mBr(m=4、6、8、9)为原料，超声辐射合成出聚(β-烷氧基)对萘撑乙烯(PAONV)，研究了反应条件对中间体和聚合物产率的影响，用IR和1HNMR对中间体和聚合物的结构进行表征.实验结果表明：超声辐射合成PAONV的产率比回流搅拌合成的要高，PAONV总收率达74.4%，反应时间由35小时缩短到20小时；C2H5ONa作为碱性试剂比NaOH更有利于提高醚化反应的产率；强极性的二甲亚砜溶剂（DMSO）能提高脱氯化氢反应的产率；醚化、双氯甲基化和脱氯化氢反应的最佳反应时间分别是5h、5h、10h.