合成了一种甲基丙烯酸甲酯与侧链含有偶氮苯生色团和可化学交联基团-羟基的甲基丙烯酸酯共聚物,这种共聚物和甲苯-2,4-二异氰酸酯(TDI)交联得到的交联网络结构使极化后生色团取向稳定化.SHG测量表明,固化后的聚合物膜的非线性光学稳定性较好,其二阶非线性光学系数d33值室温下1680 h能维持初值的～96%,100 ℃时1000 min仍能维持初值的～70%.极化交联膜的d33值也较高,达到6.10×10-7 esu.
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