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Citation: JIA Xu, ZHANG Yue-Jun. Preparation of Poly (dimethyldiallylammonium chloride) via APS Initiation[J]. Chinese Journal of Applied Chemistry, ;2007, 24(6): 610-614. shu

Preparation of Poly (dimethyldiallylammonium chloride) via APS Initiation

JIA Xu ,
ZHANG Yue-Jun ^,

1.
The School of Chemical Engineering, Nanjing University of Science and Technology, Nanjing 210094

Corresponding author: ZHANG Yue-Jun,
Received Date: 18 June 2006
Available Online: 20 November 2006
Fund Project: "十五"国家科技攻关项目(2003BA327C) (2003BA327C)南京市科技计划项目(04d251016) (04d251016)

Using ammonium persulphate as the initiator and industrial grade dimethyldiallylammonium chloride (DMDAAC) as the monomer,PDMDAAC with high molecular mass was obtained by adding all the initiator in one shot and raising the polymerization temperature in steps.The maximum intrinsic viscosity of the product PDMDAAC could reach 3.17 dL/g,and the monomer conversion rate was 94.8%.The product structure was characterized by FTIR and NMR.The effect of process conditions,such as the concentration of DMDAAC,the mass ratio of APS to DMDAAC,the mass ratio of Na₄EDTA to DMDAAC,initiating temperature T₁ and reaction temperature T₃ on the intrinsic viscosity of the product and monomer conversion were investigated respectively.The results showed that the optimum process conditions were mass concentration of DMDAAC 65.0%,mass ratio of APS to DMDAAC 0.35:100,mass ratio of Na₄EDTA to DMDAAC 0.007 1:100,T₁=46℃,T₂=50℃ and T₃=70℃,with 3 h reaction time at each temperature.
- diallyldimethylammonium chloride homopolymer,
- poly (diallyldimethylammonium chloride),
- process,
- intrinsic viscosity,
- monomer conversion,
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