| 反相乳液聚合合成聚丙烯酰胺 |
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| 引用本文： | 董灵光.反相乳液聚合合成聚丙烯酰胺[J].应用化工,2011,40(6). |
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| 作者姓名： | 董灵光 |
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| 作者单位： | 陕西国防工业职业技术学院化学工程系,陕西西安,710300 |
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| 摘 要： | 以甲苯为介质,Span80/Span20为乳化剂,叔丁基过氧化氢/亚硫酸氢钠氧化还原体系为引发剂,采用反相乳液聚合制备了分子量高达9.4×106的聚丙烯酰胺乳液。研究了乳化剂种类及用量、引发剂种类及用量、油水比、单体浓度,反应温度对共聚物相对分子量、聚合转化率以及聚合反应速率的影响。其最佳聚合配方及工艺条件为:油水体积比为1.4,单体浓度30%,引发剂用量0.003%,乳化剂用量12%,聚合温度30℃。
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| 关 键 词： | 丙烯酰胺 聚丙烯酰胺 反相乳液聚合 粘均分子量 |
Synthesis of polyacrylamide by inverse emulsion polymerization |
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| DONG Ling-guang.Synthesis of polyacrylamide by inverse emulsion polymerization[J].Applied chemical industry,2011,40(6). |
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| Authors: | DONG Ling-guang |
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| Affiliation: | DONG Ling-guang (Department of Chemical Engineering,Shaanxi Vocational Institute of National Defence,Xi'an 710300,China) |
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| Abstract: | The PAM emulsion with average viscosity molecular weight of 9.4×106 was synthesized by the inverse emulsion polymerization technology,using the Span80/Span20 as the emulsifiers,toluene as the continuous medium,TBHP/sodium bisulphite redox as the initiator.The effect of the ratio of oil-phase to aqueous-phase,monomers concentration,the type and amount of emulsifier,the type and amount of initiator,reaction temperature on the polyacrylamide molecular weight,the conversion of monomer and polymerization rate were investigated.The best polymerization formula and conditions were:ratio of oil-phase to aqueous-phase 1.4,monomer concentration 30%,initiator amount 0.003%,emulsifier dosage 12%,reaction temperature 30 ℃. |
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| Keywords: | acrylicamide polyacrylamide inverse emulsion polymerization average viscosity molecular weight |
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