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双反应性表面活性剂用于在微乳液中合成功能纳米囊
Wenwen Li1, Jeong Ae Yoon, Krzysztof Matyjaszewski
1Department of Chemistry, Carnegie Mellon University, 4400 Fifth Avenue, Pittsburgh, Pennsylvania 15213, USA.
Journal of the American Chemical Society
|May 27, 2010
概括
研究人员为先进的纳米囊合成创造了双反应性表面活性剂. 这些两类块共聚合物使得针对特定应用的控制聚合和功能化成为可能.
科学领域:
- 聚合物化学 聚合物化学
- 材料科学 材料科学 材料科学
- 纳米技术 纳米技术
背景情况:
- 两类块共聚物提供独特的自组装和接口特性.
- 原子转移基聚合 (ATRP) 提供了受控的聚合物链生长.
- 纳米囊是各种应用的多功能载体.
研究的目的:
- 合成功能双重的两类块共聚物,同时作为表面活性剂和宏观启动剂.
- 开发一种用于创建具有潜伏功能的交叉链接聚合物纳米囊的方法.
- 为了证明纳米囊的后修改用于先进的应用.
主要方法:
- 通过ATRP合成alpha-azido-omega-2-chloroisobutyrate-poly ((oligo ((乙烯氧化物) 单甲基乙太甲基酸盐) -b-poly ((n-丁甲基酸盐).
- 使用合成的块共聚合物作为双反应表面活性剂/启动剂进行迷你乳液共聚化.
- 纳入可降解的交叉连接器,以控制纳米囊裂变.
- 纳米囊的功能化后使用终端亚基组.
主要成果:
- 成功制备了双反应性两类块共聚合物.
- 获得的聚合物纳米囊具有交叉连接的外和潜在的阿齐多功能.
- 在油水界面证明了受控的聚合初始化.
- 展示了在特定条件下分裂的可降解纳米囊.
- 确认了光探针和额外的聚合物外的成功安装.
结论:
- 双反应性表面活性剂对于功能性聚合物纳米囊的受控合成是有效的.
- 开发的方法允许对纳米囊进行可调节的降解和后修改.
- 这些纳米囊有可能用于药物输送,诊断和先进材料.
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