以二硫代苯甲酸(4-氰基戊酸)酯为链转移剂,苯乙烯为亲油单体,乙烯基己内酰胺为亲水性单体,通过RAFT技术合成了两亲性嵌段共聚物.由FT-IR、1H-NMR和13C-NMR确定了共聚物的结构,分子量及其分布通过GPC测定,分别为14600g/mol和1.21.粒度测定结果发现,两亲性共聚物可在水溶液中自组装成胶束,其粒径约为150 nm,TEM观察胶束呈球形,其尺寸证实了粒度测定结果.由胶束溶液在不同温度下的透光率证实了胶束的温度敏感性.通过在不同温度测定胶束粒径发现其随着温度的升高而增加,并且多分散指数也在增加,这是由胶束的凝聚造成的.
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