Synthesis and properties of novel X-type nonlinear optical polyester containing nitrophenylazonitroresorcinoxy group with highly enhanced SHG thermal stability
作者:Ji-Hyang Lee、Ju-Yeon Lee
DOI:10.1016/j.dyepig.2015.01.003
日期:2015.4
New X-type polyester (4) containing nitrophenylazonitroresorcinoxy groups as NLO chromophores, which are components of the polymer backbone, was prepared and characterized. Polyester 4 is soluble in common organic solvents such as acetone and N,N-dimethylformamide. It shows a thermal stability up to 280 °C in thermogravimetric analysis with glass-transition temperature (Tg) obtained from differential
制备并表征了含有硝基苯基偶氮硝基间苯二氧基作为NLO发色团的新型X型聚酯(4),其是聚合物主链的组分。聚酯4可溶于常见的有机溶剂,例如丙酮和N,N-二甲基甲酰胺。在通过120℃附近的差示扫描量热法获得的玻璃化转变温度(T g)进行热重分析时,它显示了高达280°C的热稳定性。极化聚合物薄膜在1064 nm基本波长处的二次谐波产生(SHG)系数(d 33)约为2.13 pm / V。偶极排列即使在比T高5°C时也显示出热稳定性g,并且由于聚合物结构的部分主链特性,在125°C以下没有SHG衰减,这对于NLO器件应用是可以接受的。