【摘要】 使用可聚合的丙烯酰化失水山梨醇糖单硬脂酸酯 (Acrylicsorbitanmonostearate,ASMS)作乳化剂 ,在白油中进行了丙烯酰胺 (AM)的反相乳液聚合 .用HPLC考察了ASMS乳化剂存在下AM的反相乳液聚合特征 .使用 (NH4 ) 2 S2 O8引发反应 ,其聚合动力学方程可写成 -d[AM]dt =K·[AM]1 68·[ASMS]0 12 ·[(NH4 ) 2 S2 O8]0 3 8.研究还发现 ,当AM的转化率达到 68%左右时 ,由于ASMS开始与AM发生共聚合 ,体系中游离的ASMS分子浓度急剧下降更多还原

【Abstract】 Polymerizable acrylic sorbitan monostearate (ASMS) was used as emulsifier,the inverse emulsion polymerization of acrylamide (AM) in white oil has been carried out.The peculiarities of inverse emulsion polymerization of AM has been investigated by high performance liquid chromatography(HPLC) in the persence of ASMS.For the overall rate of polymerization,the following expression has been found,-d[AM]d t = K [AM] 1 68 · [ASMS] 0 12 ·[(NH 4) 2S 2O 8] 0 38 .In addition,the ASMS concentration in oil phase almost kept constant during low conversion range of AM.While the conversion of AM has been up to 68% or so,however,ASMS concentration in oil phase decreased rapidly.更多还原