作者:M. Ya. Goikhman、L. I. Subbotina、I. V. Gofman、A. V. Yakimanskii、A. E. Bursian、V. A. Lukoshkin、G. N. Fedorova、A. V. Sidorovich、O. E. Praslova、N. N. Smirnov、I. V. Abalov、V. V. Kudryavtsev
DOI:10.1007/s11172-005-0431-0
日期:2005.6
A new method was elaborated for the introduction of chromophores into the side chains of polymers by esterification of polyamidoimides containing side carboxy groups with glycidyl ethers of dyes, 4-(4-nitrophenylazo)phenol and 4-(6-nitrobenzothiazol-2-ylazo)phenol. The optimum modification conditions were found that made it possible to esterify 15, 30, 50, and 90% of the carboxy groups. The synthesized polymers possess valuable physicomechanical properties (E = 2.8–3.3 GPa, σu = 69–90 MPa, εu = 38–77%) and glass transition temperatures of 115–125 °C, depending on the degree of esterification. After chromophore orientation in the corona discharge, all the polymers demonstrate nonlinear optical properties of the second order.
通过将含有侧羧基的聚酰胺酰亚胺与染料缩水甘油醚、4-(4-硝基苯偶氮)苯酚和 4-(6-硝基苯并噻唑-2-基)苯酚酯化,详细阐述了将发色团引入聚合物侧链的新方法。找到的最佳改性条件可以使 15%、30%、50% 和 90% 的羧基酯化。根据酯化程度的不同,合成的聚合物具有重要的物理机械性能(E = 2.8-3.3 GPa,σu = 69-90 MPa,εu = 38-77%),玻璃化温度为 115-125 ℃。在电晕放电中进行发色团定向后,所有聚合物都显示出二阶非线性光学特性。