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用5,5′-(六氟异丙基)-二-(2-氨基苯酚)(6FHP),4,4-′(六氟异丙基)-苯二酸酐(6FDA)和分散红19(DR19)合成了可制作光波导器件的含氟聚酰亚胺(PI-19)有机聚合物;采用示差扫描量热(DSC)、热失重分析(TGA)和近红外吸收光谱等方法对PI-19的热稳定性和光学性质进行了表征。示差扫描量热和热失重分析结果显示,PI-19的玻璃化转变温度(Tg)为256℃,在5%的热失重温度为380℃,表明具有非常好的热稳定性。近红外吸收光谱表明,材料在光通信波段(1.3μm和1.55μm)有2个较低吸收的“窗口”,可以用来制作低损耗的光通信器件、光开关等。制得的聚合物材料具有较大的热光系数,其值为-4.13×10-4~-3.72×10-4℃-1(650~1310 nm),对于研制具有低驱动功率的新型数字热光开关具有一定意义。
(Hexafluoroisopropyl) -bis- (2-aminophenol) (6FHP), 4,4 ’- (hexafluoroisopropyl) -phthalic anhydride (6FDA) and Disperse Red 19 (PI-19) organic polymers that can be used to fabricate optical waveguides were synthesized by the method of DR19. The effects of PI- 19 thermal stability and optical properties were characterized. Differential scanning calorimetry and thermogravimetric analysis showed that PI-19 had a glass transition temperature (Tg) of 256 ° C and a 5% weight loss temperature of 380 ° C, indicating very good thermal stability. Near infrared absorption spectroscopy shows that the material has two lower absorption “windows” in the optical communication wavelength band (1.3μm and 1.55μm), which can be used to make low-loss optical communication devices, optical switches and the like. The prepared polymer material has a large thermal coefficient of -4.13 × 10-4 ~ -3.72 × 10-4 ℃ -1 (650 ~ 1310 nm), for the development of a new type of digital drive with low driving power Optical switch has some significance.