Lujian Chen, Yuanjing Cui, X. Mei
2007
Citations
0
Influential Citations
23
Citations
Journal
Dyes and Pigments
Abstract
Abstract Two triphenylamino-substituted chromophores containing hydroxy group, which can be easily incorporated into polymer backbone or sol–gel matrix through covalent bond, were synthesized via Vilsmeier–Haack reaction and Knoevenagel condensation. These stilbene-type chromophores with different electron acceptors were characterized by elemental analysis, 1 H NMR, FTIR, UV–vis spectra and thermogravimetric analysis (TGA). The hyperpolarizabilities were characterized through solvatochromic method. Compared with commercially available nonlinear optical dyes such as C.I. Disperse Red 1 (DR1), C.I. Disperse Orange 3 (DO3) and C.I. Disperse Red 19 (DR19), triphenylamino-substituted chromophores possess higher thermal stability and display better transparency in operating wavelength of electronic devices.