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研究了亚硝酸钠引发硝酸溶液中丙烯腈的聚合反应。测得表现聚合速度 Rp=Ae~(-10,800/RT)[AN]~2.2[NaNO_2]~(0.17-1.0)[HNO_3]~(1.0-0.67 丙烯腈-丙烯酸甲酯共聚合反应中竞聚率分别是γ_An=0.96,γ_MA=1.17,表明聚合反应是按自由基机理进行。 根据聚合动力学和红外光谱分析,认为以亚硝酸钠引发硝酸溶液中丙烯腈的聚合反应与电解或金属溶蚀过程中的次级引发相同。
The polymerization of acrylonitrile in nitric acid solution was studied. The measured polymerization rate Rp = Ae ~ (-10,800 / RT) [AN] ~ 2.2 [NaNO_2] ~ (0.17-1.0) [HNO 3] ~ (1.0-0.67 Acreonitrile - methyl acrylate copolymerization reactivity ratio Respectively, γ_An = 0.96, γ_MA = 1.17, indicating that the polymerization reaction is based on the free radical mechanism.According to the polymerization kinetics and infrared spectroscopy analysis, it is considered that sodium nitrite initiates the polymerization of acrylonitrile in nitric acid solution and electrolysis or metal dissolution process The same secondary trigger.