213273-98-4Relevant academic research and scientific papers
Synthesis and electro-optic properties of novel T-type polyurethane with high thermal stability of second harmonic generation
Lee, Ju-Yeon,Jung, Won-Taek,Kim, Jin-Hyang
, p. 357 - 364 (2007)
2,5-Di-(2'-hydroxyethoxy)benzylidenemalononitrile (3) was prepared and polyadded with 3,3'-dimethoxy-4,4'-biphenylenediisocyanate to yield novel T-type polyurethane 4 containing 2,5-dioxy benzylidenemalononitrile group as a nonlinear optical (NLO)-chromop
Synthesis and properties of novel t-type nonlinear optical polyurethane containing tricyanovinylthienyl group with enhanced thermal stability of dipole alignment
Cho, You Jin,Kim, Mi Sung,Lee, Ju-Yeon
experimental part, p. 424 - 430 (2011/12/22)
A novel T-type polyurethane 7 containing 1-(2,5-dioxyphenyl)-2-(5-(1,2,2- tricyanovinyl)-2-thienyl)ethenes as NLO chromophores, which constitute part of the polymer backbone, was prepared. Polyurethane 7 is soluble in common organic solvents such as DMF and DMSO. It shows a thermal stability up to 270 °C from TGA thermogram with Tg value obtained from DSC thermogram near 155 °C. The second harmonic generation (SHG) coefficient (d33) of poled polymer film at 1560 nm fundamental wavelength is 3.56 × 10-9 esu. Polymer 7 exhibits a thermal stability even at 5 °C higher than T g, and no significant SHG decay is observed below 160 °C, which is acceptable for nonlinear optical device applications.
Synthesis and nonlinear optical properties of novel T-type polyurethane containing tricyanovinylthiophene
Cho, You Jin,Kim, Mi Sung,Lee, Ju-Yeon
scheme or table, p. 442 - 448 (2011/12/01)
A novel T-type polyurethane 7 containing 1-(2,5-dioxyphenyl)-2-{5-(1,2,2- tricyanovinyl)-2-thienyl}ethene groups as nonlinear optical (NLO) chromophores was prepared and characterized. Polyurethane 7 is soluble in common organic solvents such as DMF and DMSO. Polymer 7 shows a thermal stability up to 270°C from TGA thermogram and the Tg value obtained from DSC thermogram is around 155°C. The second harmonic generation (SHG) coefficient (d 33) of poled polymer film at 1560nm fundamental wavelength is 3.56 × 10-9esu. The dipole alignment exhibits a thermal stability even at 5°C higher than Tg, and there is no SHG decay below 160°C due to the partial main-chain character of the polymer structure, which is acceptable for nonlinear optical device applications. Copyright Taylor & Francis Group, LLC.
Synthesis and nonlinear optical properties of novel T-type polyester containing thiophene with enhanced thermal stability
No, Hyo Jin,Cho, You Jin,Lee, Ju-Yeon
experimental part, p. 429 - 434 (2010/08/19)
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°oC in thermogravimetric analysis thermogram and the glass-transition temperature (Tg) obtained from differential scanning calorimetry thermogram was around 113 °C. The second harmonic generation (SHG) coefficient (d 33) of poled polymer films at 1,560 nm fundamental wavelength was around 1.85 pm/V. The dipole alignment exhibits a greater thermal stability even at 10 °C higher than Tg, and there is no SHG decay below 125 °C due to the partial mainchain character of the polymer structure, which is acceptable for nonlinear optical device applications.
Synthesis and nonlinear optical properties of a novel polyester containing tricyanovinylthienyl group
No, Hyo Jin,Lee, Ga-Young,Cho, You Jin,Lee, Ju-Yeon
scheme or table, p. 186 - 192 (2011/09/12)
A novel T-type polyester (7) containing 1-(2,5-dioxyphenyl)-2-{5-(1,2,2- tricyanovinyl)-2-thienyl}ethene groups as NLO-chromophores was synthesized and characterized. Polymer 7 was soluble in common organic solvents such as DMF and DMSO. It showed thermal stability up to 300°C in TGA with Tg value obtained from DSC near 113°C. The second harmonic generation (SHG) coefficient (d33) of poled polymer film at the 1560nm fundamental wavelength was around 4.42×10-9esu. The dipole alignment exhibited a greater thermal stability even at 10C higher than Tg, and there was no SHG decay below 125°C due to the partial main-chain character of the polymer structure, which is acceptable for nonlinear optical device applications.
