雷亮,夏正斌,邢俊恒,钟理

• 1:华南理工大学化学与化工学院

摘要(Abstract)：

采用半连续种子乳液聚合法合成了核壳型乙酰乙酰基丙烯酸酯聚合物乳液,并采用1,6-己二胺对其进行了室温交联改性。探讨了乳液聚合反应条件和交联单体甲基丙烯酸乙酰乙酰氧基乙酯(AAEM)用量对乳液及乳胶膜性能的影响。结果表明:当乳化剂十二烷基联苯醚二磺酸钠(DSB)、引发剂过硫酸钾(KPS)用量分别为单体总量的1.5%(wt)和0.5%(wt)时,单体转化率高,凝胶率低。透射电镜(TEM)分析显示乳胶粒呈明显的核壳结构,粒径约为130 nm。DSC、TGA和力学性能测试表明交联提高了乳胶膜的玻璃化转变温度、热稳定性及力学性能。随着AAEM用量的增加,乳胶膜的性能逐渐得到提高。当AAEM用量为单体总量的7%(wt)时,加入己二胺的乳液仍贮存稳定,可以单组分包装,并且交联后的乳胶膜性能优异。

关键词(KeyWords)： 丙烯酸酯;乳液;室温交联;甲基丙烯酸乙酰乙酰氧基乙酯

Abstract:

Keywords:

基金项目(Foundation): 科技型中小企业技术创新基金(08C26214402212)

作者(Author): 雷亮,夏正斌,邢俊恒,钟理

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