摘要
以丙烯酸(AA)、丙烯酰胺(AM)、2-丙烯酰胺-2-甲基丙磺酸(AMPS)作为混合单体,Span-80和Tween-60作为复合乳化剂,采用氧化还原引发体系,在30℃下制备了稳定的超浓反相聚合物乳液。研究了油相体积分数和引发剂用量对乳液稳定性的影响,分别用离心、加热方式对超浓反相聚合物乳液进行了稳定性的表征。结果表明,在乳化剂浓度一定的条件下,一定量的水相形成稳定结构的乳液所需要的油相量是一定的。聚合物乳液的稳定性随着油相体积分数的减小而增大,随着引发剂用量的增加先增大后减小。
Stable concentrated inverse polymer emulsion（CIPE） was prepared by using ternary monomers of acrylic acid（AA）,acrylamide（AM） and 2-acrylamide-2-methyl propane sulfonic acid（AMPS）,with Span-80 and Tween-60 as complex emulsifiers in the presence of a redox initiator system at 30 ℃. The effects of oil-phase volume fraction and initiator amount on stability were investigated. The stability was characterized by virtue of centrifugation and thermal treatment. The results showed that the oil-phase amount with stable structure emulsion was certain under certain emulsifier and certain water-phase amount. It was found that the stability increased with the increase of oil-phase volume fraction,and increased firstly and then decreased with the increase of initiator amount.
出处
《化学与生物工程》
CAS
2012年第1期25-28,共4页
Chemistry & Bioengineering
基金
国家自然科学基金资助项目(21071114)
湖北省自然科学基金重点项目(2010CDA027)
武汉市学科带头人计划项目(武科计[2010]149号)
