本文用热重法测定了芳基乙炔均聚物及其与苯乙炔的共聚物的热分解温度和成碳率,所得结论有:共聚物中含二乙炔芳烃量越多,交联度越大,则其热分解温度越高,成碳率也越大;二乙炔芳烃和苯乙炔共聚物的成碳率远高于按其均聚物计算所得的成碳率。 The thermogravimetric method was used to determine the thermal decomposition temperature and carbon formation rate of aryl acetylene homopolymer and its copolymer with phenylacetylene. The conclusions are: the more diacetylenes contained in the copolymer, the greater the degree of crosslinking , The higher the thermal decomposition temperature is, the higher the carbon formation rate is; the carbon formation rate of diacetylene aromatics and phenylacetylene copolymers is much higher than the carbon formation rate calculated from their homopolymers.