通过氨基酸N-碳素化物的乳液聚合获得的多纳米颗粒
Jaco Jacobs1, Dražen Pavlović2, Hannah Prydderch2
1School of Chemical Sciences , Dublin City University , Glasnevin, Dublin 9 , Ireland.
Journal of the American Chemical Society
|July 27, 2019
概括
研究人员使用专门的聚合技术制造了多纳米颗粒. 紫外线触发了保护组的去除,导致粒子交叉链接和收缩.
科学领域:
- 聚合物化学
- 材料科学
- 纳米技术
背景情况:
- 聚纳米颗粒在各种科学领域提供了多功能应用.
- 具有特定尺寸和特性的纳米颗粒的受控合成对于先进的应用至关重要.
- 对刺激有反应的材料的开发是一个活跃的研究领域.
研究的目的:
- 通过S- ((o-nitrobenzyl) -l-cysteine N-carboxyanhydride (NBC NCA) 的微乳液聚合合成多纳米颗粒.
- 为控制聚合和纳米粒子形成优化反应条件.
- 研究紫外线辐射对纳米粒子特性的影响,包括交叉链接和尺寸缩小.
主要方法:
- S- ((o-nitrobenzyl) -l-cysteine N-carboxyanhydride (NBC NCA) 的微乳液聚合
- 过程优化以控制反应条件和纳米颗粒大小 (约. 它们的长度为220nm.
- 纳米颗粒乳液的紫外线照射,以诱导现场组移除和交叉链接.
主要成果:
- 平均尺寸为220nm的聚纳米颗粒的成功合成.
- 对水敏感的NBC NCA的聚合条件的优化.
- 通过紫外线触发,在现场去除基基.
- 导致粒子交联和收缩的二硫化键形成.
结论:
- 通过NBC NCA的微乳液聚合,可以有效合成多纳米颗粒.
- 紫外线照射提供了一种可控制的合成后修改方法,包括交叉链接和尺寸缩小.
- 开发的方法为潜在的应用提供了可调节的多纳米结构的途径.
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