Synthesis and Nonlinear Optical Properties of Novel T-type Polyester Containing Thiophene with Enhanced Thermal Stability
作者:Hyo-Jin No、You-Jin Cho、Ju-Yeon Lee
DOI:10.5012/bkcs.2010.31.02.429
日期:2010.2.20
A novel T-type polyester 7 containing 1-(2,5-dioxyphenyl)-2-5-(1,2,2-tricyanovinyl)-2-thienyl}ethenes as nonlinear optical (NLO) chromophores, which are part of the polymer backbone, was prepared and characterized. Polyester 7 is soluble in common organic solvents such as dimethylsulfoxide and N,N-dimethylformamide. It showed a thermal stability up to 300 o C in thermogravimetric analysis thermogram
一种新型 T 型聚酯 7,含有 1-(2,5-二氧苯基)-2-5-(1,2,2-三氰基乙烯基)-2-噻吩基}乙烯作为非线性光学 (NLO) 发色团,它们是制备和表征聚合物骨架。聚酯7可溶于二甲基亚砜和N,N-二甲基甲酰胺等常见有机溶剂。它在热重分析热分析图中显示出高达 300 o C 的热稳定性,从差示扫描量热法热分析图中获得的玻璃化转变温度 (Tg) 约为 113 o C。极化聚合物薄膜的二次谐波产生 (SHG) 系数 (d33)在 1,560 nm 处,基本波长约为 1.85 pm/V。即使在高于 Tg 10 o C 时偶极排列也表现出更大的热稳定性,并且由于聚合物结构的部分主链特性,在 125 o C 以下没有 SHG 衰减,