Synthesis and Properties of Novel Y-type Nonlinear Optical Polyester Containing Dioxynitroazobenzene Group with Enhanced Thermal Stability of Dipole Alignment
作者:Mi-Sung Kim、You-Jin Cho、Mi-Young Song、Ju-Yeon Lee
DOI:10.5012/bkcs.2011.32.9.3361
日期:2011.9.20
New Y-type polyester (3) containing nitrophenylazoresorcinoxy groups as NLO chromophores, which are components of the polymer backbone, was prepared and characterized. Polyester 3 is soluble in common organic solvents such as N,N-dimethylformamide and acetone. It shows a thermal stability up to in thermogravimetric analysis with glass-transition temperature () obtained from differential scanning calorimetry
制备并表征了新的 Y 型聚酯 (3),该聚酯 (3) 含有作为聚合物骨架组分的 NLO 生色团的硝基苯基偶氮基间苯二酚氧基。聚酯3可溶于N,N-二甲基甲酰胺和丙酮等常见有机溶剂。在差示扫描量热法获得的玻璃化转变温度 () 附近,它在热重分析中显示出热稳定性。极化聚合物薄膜在 1064 nm 基波波长处的二次谐波产生 (SHG) 系数 () 约为 esu。偶极子排列即使在高于 时也表现出热稳定性,并且由于聚合物结构的部分主链特征,在以下没有 SHG 衰减,这对于 NLO 器件应用是可以接受的。