聚二烯丙基二甲基氯化铵的合成及AKD熟化应用研究

以二烯丙基二甲基氯化铵为原料，过硫酸钾（KPs）为引发剂，采用梯度升温的方法合成出了高分子量的聚二烯丙基二甲基氯化铵，并将其应用于AKD的熟化促进剂。结果表明：单体浓度为60％，引发剂过硫酸钾（KPs）用量为0．2％（／单体质量），反应体系pH值为5，Na4ED—TA用量为0．003％（／单体质量），合成出了高特性粘度的PDMDAAC；在乳化AKD过程中加入少量的PDMDAAC，其施胶效果较未添加PDMDAAC的效果更佳。

Synthesis of poly diallyl dimethyl ammonium chloride and application to AKD sizing

By using diallyl dimethyl ammonium chloride （DM- DAAC） as a monomer, and the potassium persulfate （KPS） as a initiator, poly diallyl dimethyl ammonium chloride （PDMDAAC） with high molecular weight was synthesized by the method of gradually increasing temperature. The results were shown as follows： The initial concentration of monomer was 60%. The dosage of the potassium persulfate （KPS） was 0.2% compared to monomer amount. The pH value of the reaction system was 5. The dosage of the Na4EDTA is 0.003% of monomer amount. The application of PDMDAAC in emulsion process was discussed. The sizing effect was better than the AKD emulsion without PDMDAAC.