一种新型二阶非线性光学功能分子及其交联聚氨酯材料的合成  

Synthesis of a Novel Second Order Nonlinear Optical Chromophore and Its Polyurethane Polymers

作　　者：祖凤华[1] 邱玲[1] 沈玉全[1] 邓晓旭[2] 周见红[2] 沈启舜[2] 曹庄琪[2] 

机构地区：[1]中国科学院理化技术研究所,北京100101 [2]上海交通大学应用物理系,上海200240

出　　处：《高等学校化学学报》2006年第3期562-566,共5页Chemical Journal of Chinese Universities

基　　金：国家自然科学基金重点(批准号:60237010)资助.

摘　　要：合成了新型的含有偶氮和噻吩环的二阶非线性光学功能分子,用红外光谱、紫外光谱、核磁共振和质谱确定了其结构;制备了含有该功能分子的两种交联型聚氨酯聚合物薄膜,当测量波长为1064nm时,用Marker条纹法测得的二阶非线性光学系数d33值分别为80.6pm/V(发色团的数密度为0.91×1020Molecules/cm3)和20.1pm/V(发色团的数密度为2.21×1020Molecules/cm3);聚合物Ⅱ的取向热稳定性达到了152℃.A novel second-order NLO azo-chromophore containing thiophene conjugated bridge and TCF acceptor was synthesized and characterized by means of IR, UV, MS and ^1H NMR. Two types of crosslinking polyurethane containing this chromophore were prepared, agents, respectively. Second harmonic coefficient d33 val in which TEA and BPAN acted as the crosslinking ues for the two polymers were measured by Markerfringe method at 1 064 nm, they were 20.1 pm/V （ chromophore number density is 2.21 × 10^20 molecules/ cm^3 ） and 80.6 pm/V（ chromophore number density is 0.91 ×10^20 molecules/cm^3 ）, respectively. Polymer Ⅱ showed a thermal stability of 152 ℃, which was 71 ℃ higher than polymer Ⅰ.

关 键 词：二阶非线性光学 电光材料 偶氮 

分 类 号：O633.2[理学—高分子化学]