期刊文献+

氧化还原引发AA/AM/AMPS超浓反相乳液聚合及乳液稳定性的研究 被引量:2

Study on Redox Initiated Concentrated Inverse Emulsion Polymerization of AA/AM/AMPS and Its Stability
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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)
关键词 超浓反相聚合物乳液 转化率 稳定性 氧化还原引发体系 concentrated inverse polymer emulsion conversion stability redox initiator system
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