秦敦忠,陈洪龄

• 1:南京工业大学 化工学院，江苏 南京 210009

摘要(Abstract)：

活性聚合具有结构可设计性强、产品分子量分布窄的特点，采用RAFT技术，苯乙烯、马来酸酐、异戊烯基聚氧乙烯醚（M_n=2300）和链转移剂3-（苄硫基硫代羰基硫基）丙酸质量比为19：19：0.76：1，RAFT试剂与AIBN摩尔比5：1，温度80℃，在丁酮中溶液聚合制备了梳型分散剂。聚合过程中ln（[M]_o/[M]）与反应时间，以及聚合物数均分子量与反应转化率均呈一级线性关系，聚合过程具有活性聚合特征。M_n=1.03×10⁴，PDI=1.14，XPS与FTIR等分析结果表明分散剂单分子层多点物理吸附于颗粒表面，吸附层厚度1.33 nm。制备的48%吡虫啉水悬浮剂在pH=7.0~8.0时，zeta电位绝对值最大，TURBISCAN测试稳定性参数TSI相对传统分散剂小，较稳定。

关键词(KeyWords)： 活性聚合;梳型分散剂;悬浮剂;分散

Abstract:

Keywords:

基金项目(Foundation):

作者(Author): 秦敦忠,陈洪龄

DOI: 10.3969/j.issn.1003-9015.2017.02.013

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