DMDAAC/FA共聚合动力学及应用研究  

Study on copolymeric kinetics and application of DMDAAC/FA

作　　者：江燕妮[1] 苏智 张晓明[1] 朱明[1,2] JIANG Yanni;SU Zhi;ZHANG Xiaoming;ZHU Ming(College of Chemistry and Material Science,Sichuan Normal University,Chengdu 610068,China;Key Laboratory of Special Waste Water Treatment,Sichuan Province Higher Education System,College of Chemistry andMaterial Science,Sichuan Normal University,Chengdu 610068,China)

机构地区：[1]四川师范大学化学与材料科学学院,四川成都610068 [2]四川教育厅特种废水处理工程实验室四川师范大学化学与材料科学院,四川成都610068

出　　处：《化学研究与应用》2018年第6期940-945,共6页Chemical Research and Application

基　　金：四川省高校重点实验室开放项目(SWWT2014-4)资助;四川省教育厅成果转化重大培育项目(13cz0021)资助

摘　　要：以二甲基烯丙基氯化铵(DMDAAC)和富马酸(FA)作共聚单体,过硫酸钾(K_2S_2O_8)/亚硫酸氢钠(NaHSO_3)为氧化还原引发剂,采用膨胀计法研究了单体的水溶液共聚合动力学。用傅里叶红外光谱(FT-IR)和核磁共振(1HNMR)对共聚产物进行了表征。研究结果表明,DMDAAC和FA共聚合速率方程为Rp=k[DMDAAC/FA]3.93[I]1.01,表观活化能Ea=24.99k J·mol^(-1)。并在动力学基础上初步研究了共聚物P(DMDAACco-FA)和聚合硫酸铁(PFS)的沉降率和对印染废水的絮凝能力,结果表明,P(DMDAAC-co-FA)的沉降率是PFS的7.8倍,其絮体更大、更紧实,具有更好的絮凝沉降效果。The copolymerization kinetics was studied by dilatometer method in aqueous solution with diallyl dimethyl ammonium chloride（ DMDAAC） and fumaric acid（ FA） as monomers and potassium persulfate-sodium bisulfate redoxas initiator. At the same time,the copolymerization product was characterized by FT-IR and ~1HNMR. The results showed that the polymerization equation of DMDAAC and FA was Rp = k[DMDAAC/FA]3. 93[I]1. 01,and the apparent activation energy was 24. 99 kJ·mol^（-1）. On the basis of this kinetics understanding,dyeing wastewater was treated with P（ DMDAAC-co-FA） and PFS separately,revealing the floccules of P（ DMDAAC-co-FA） were bigger and thicker than those of PFS.Sedimentation rate of P（ DMDAAC-co-FA） was 7. 8 times than that of PFS,P（ DMDAAC-co-FA） had a better performance on flocculating sedimentation.

关 键 词：二甲基烯丙基氯化铵 富马酸 共聚合动力学 表观活化能 

分 类 号：O631.5[理学—高分子化学]