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研究了N,N-二甲氨基亚甲基丙烯酰胺(DMAAM)—过硫酸钾体系引发丙烯酰胺聚合反应动力学,得到聚合反应速度方程式为: R_p=K_pC(DMAAM)~(0.5)c(K_2S_2O_8)~(0.5)c(AM) 测定出表观活化能为29.95kJ·mol~(-1)。通过实验,证实了DMAAM具有引发和参加反应的双重功能,能加快聚合速度,并得到相对分子质量上千万的产物,但相对分子质量分布较宽。还研究了某些添加剂对相对分子质量及其分布的影响。
The polymerization kinetics of acrylamide induced by N, N-dimethylaminomethyleneamylacrylamide (DMAAM) and potassium persulfate system was studied. The polymerization rate equation was: Rp = Kpc DMAAM ~ 0.5c K_2S_2O_8 ) ~ (0.5) c (AM) measured the apparent activation energy of 29.95kJ · mol ~ (-1). Through experiments, it has been confirmed that DMAAM has the dual function of initiating and participating in the reaction, accelerating the polymerization speed and obtaining tens of millions of products with relative molecular mass, but the relative molecular mass distribution is wide. The effects of certain additives on the relative molecular mass and their distribution were also studied.