Synthesis and nonlinear optical properties of novel Y-type polyurethane containing tricyanovinylthiazole with enhanced thermal stability of second harmonic generation
作者:Hyo Jin No、Han-Na Jang、You Jin Cho、Ju-Yeon Lee
DOI:10.1002/pola.23875
日期:2010.3.1
A novel Y‐type poly[iminocarbonyloxyethyl‐5‐methyl‐4‐2‐thiazolylazo‐4‐(1,2,2‐tricyanovinyl)}resorcinoxyethyloxycarbonylimino‐(3,3′‐dimethoxy‐4,4′‐biphenylene)] 4 containing 5‐methyl‐4‐5‐(1,2,2‐tricyanovinyl)‐2‐thiazolylazo}resorcinoxy groups as nonlinear optical (NLO) chromophores, which constitute part of the polymer backbone, was prepared and characterized. Polyurethane 4 is soluble in common organic
一种新型的Y型聚[亚氨基羰基氧乙基-5-甲基-4- 2-噻唑基唑基-4-(1,2,2-三氰基乙烯基)}间苯二氧基乙氧基羰基亚氨基((3,3'-二甲氧基-4,4'-联苯))]制备并表征了4个含有5-甲基-4- 5-(1,2,2-三氰基乙烯基)-2-噻唑基偶氮}间苯二酚氧基作为非线性光学(NLO)发色团的结构,该结构构成了聚合物骨架的一部分。聚氨酯4可溶于常见的有机溶剂,例如丙酮和N,N-二甲基甲酰胺。在热重分析热分析图和玻璃化转变温度(T g从差示扫描量热法热分析图获得的温度为118℃左右。极化聚合物薄膜在1560 nm基本波长处的二次谐波产生系数(d 33)约为8.43×10 -9 esu。即使在高于T g的12°C时,偶极排列也表现出热稳定性,并且由于聚合物结构的部分主链特性,低于130°C时SHG不会衰减,这对于NLO器件应用是可以接受的。©2010 Wiley Periodicals,Inc