聚合条件对聚丙烯酸胶乳增稠性能的影响  

Effect of Polymerlzation Conditions on the Thickening Property of Poly(acrylic acid)Latex

作　　者：官建国[1] 何平[1] 过俊石[1] 谢洪泉[1] 

机构地区：[1]华中理工大学化学系

出　　处：《石油化工》1995年第8期527-531,共5页Petrochemical Technology

摘　　要：用反相乳液聚合方法合成了对水增稠性能好的交联聚丙烯酸胶乳。研究了交联剂的用量、引发剂的种类和用量、水相的ｐＨ值、共聚单体内烯酰胺（ＡＭ）的用量、单体浓度以及聚合温度等因素对胶乳增稠性能的影响。同时指出，通过控制水相的ｐＨ值和引入非离子型亲水性单体如ＡＭ的方法，可提高聚丙烯酸胶乳增稠剂的耐电解质能力。A latex of poly(acrylic acid)which having very strong thickening ability was obtained by in-verse emulsion polymerization.The influence of various factors,such as initiator concentration,crosslinking agent,monomer,pH value of aqueous solution,polymerization temperature,etc.onthe thickening property of the latex are discussed.Latex having good electrolyte-resistance can beobtained with non-ionic hydrophilic comonomer i.e.acrylamide and selected pH value.

关 键 词：增稠剂 乳液聚合 聚丙烯酸 胶乳 

分 类 号：O632.51[理学—高分子化学] TQ331.47[理学—化学]