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采用差示扫描量热仪和红外光谱仪研究了N-苯基马来酰亚胺、苯乙烯和马来酸酐三元共聚物(NSMA)的热性能,热降解过程和热降解动力学。结果表明,N-苯基马来酰亚胺可以有效地提高聚合物的热性能,合成的NSMA的玻璃化温度(Tg)达212℃;用Flynn-Wall-Ozawa法求得的NSMA热降解表观活化能为186.31kJ/mol,由Crane法求得热降解的反应级数n=1.0。
The thermal, thermal degradation and thermal degradation kinetics of N-phenylmaleimide, styrene and maleic anhydride ternary copolymer (NSMA) were studied by differential scanning calorimetry and infrared spectroscopy. The results showed that the N-phenyl maleimide can effectively improve the thermal properties of the polymer, the synthesis of NSMA glass transition temperature (Tg) up to 212 ℃; Flynn-Wall-Ozawa obtained NSMA thermal degradation table View the activation energy of 186.31kJ / mol, obtained by the Crane method thermal degradation reaction series n = 1.0.