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在聚二甲基硅氧烷中加入不同用量的三(五氟苯基)硼烷[B(C6F5)3],采用TG-IR联用技术对其在N2中的热分解行为进行研究,结果表明,B(C6F5)3的加入显著降低了聚二甲基硅氧烷的最大热失重温度。聚二甲基硅氧烷中加入10、100ppm(10-6)B(C6F5)3,其最大热失重温度从空白样的500℃分别降低到428℃和402℃,分别降低了72℃和98℃。红外光谱表明,B(C6F5)3的加入并没有改变热降解气相产物。
In the polydimethylsiloxane with different amount of tris (pentafluorophenyl) borane [B (C6F5) 3], the use of TG-IR technology in the thermal decomposition of N2 in the study, the results It is shown that the addition of B (C6F5) 3 significantly reduces the maximum thermogravimetric temperature of polydimethylsiloxane. The polydimethylsiloxane with 10,100ppm (10-6) B (C6F5) 3 reduced its maximum weight loss temperature from 500 ℃ to 428 ℃ and 402 ℃ respectively, and decreased 72 ℃ and 98 ℃. Infrared spectroscopy showed that the addition of B (C6F5) 3 did not alter the thermal degradation of the gas phase product.