Synthesis and nonlinear optical properties of novel Y-type polyurethane containing nitrothiazolylazoresorcinoxy groups with highly enhanced thermal stability of second harmonic generation

被引：0

作者：

Choe, Kang Yun ^{[2
]}

Lee, Ji-Hyang ^{[2
]}

Kim, Jung-Eun ^{[1
]}

Lee, Ju-Yeon ^{[1
]}

机构：

[1] Inje Univ, Dept Chem & Nano Sci Engn, Inst Basic Sci, 607 Obang Dong, Gimhae 621749, South Korea

[2] Inje Univ, Inst Basic Sci, Dept Nano Sci Engn, 607 Obang Dong, Gimhae 621749, South Korea

来源：

POLYMER INTERNATIONAL | 2016年 / 65卷 / 04期

基金：

新加坡国家研究基金会;

关键词：

nonlinear optical (NLO); polyurethanes; differential scanning calorimetry (DSC); thermogravimetric analysis (TGA); atomic force microscopy (AFM); second harmonic generation (SHG); MOMENTS ALIGNED TRANSVERSE; DIPOLE-MOMENTS; FACILE SYNTHESIS; POLYMER SYSTEM; HOST-GUEST; POLYIMIDES; DESIGN; CHROMOPHORES; RELAXATION; FILMS;

D O I：

10.1002/pi.5064

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

Novel Y-type polyurethane 4 containing 4-(5-nitro-2-thiazolylazo)resorcinoxy groups as nonlinear optical (NLO) chromophores, which are parts of the polymer main chains, was prepared and characterized. Polyurethane 4 is soluble in common organic solvents such as N,N-dimethylformamide and dimethylsulfoxide. It shows thermal stability up to 280 degrees C as determined from thermogravimetric analysis with a glass transition temperature obtained from differential scanning calorimetry of about 126 degrees C. The second harmonic generation (SHG) coefficient (d(33)) of poled polymer film at 1064 nm fundamental wavelength is 3.78 pmV(-1). Polymer 4 exhibits thermal stability even at 4 degrees C higher than glass transition temperature, and no significant SHG decay is observed below 130 degrees C, which is acceptable for NLO device applications. (c) 2016 Society of Chemical Industry

引用

页码：380 / 386

页数：7

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