光和光乳颗粒的声化学生产
Melanie Bradley1, Muthupandian Ashokkumar, Franz Grieser
1Particulate Fluids Processing Centre, School of Chemistry, University of Melbourne, Victoria 3010, Australia.
Journal of the American Chemical Society
|January 9, 2003
概括
研究人员开发了一种新方法,可以创建含有光和光材料的微小聚合物乳颗粒. 这些新的纳米粒子为先进的应用提供了独特的光学特性.
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:
- 纳米化聚合物乳颗粒对于各种应用至关重要.
- 用光和光溶液对这些粒子进行注,可以赋予它们独特的光学特性.
- 开发可控的方法来生产这样的化纳米粒子是必不可少的.
研究的目的:
- 描述一种新的方法,用于生产纳米化聚合物乳颗粒,添加光和光溶液.
- 为了描述这些杂乳颗粒和嵌入的溶液的特性.
- 为了研究聚合物矩阵内内嵌的光和光分子的光学行为.
主要方法:
- 甲基甲基烯酸单体 (10%重量) 的超声波分散,含有水中的烯,DMDP或1-甲.
- 同时聚合以产生大约60nm直径的乳颗粒.
- 光谱学和生命周期测量以分析溶解物-聚合物相互作用和环境.
主要成果:
- 成功生产了用光 (pyrene,DMDP) 和光 (1-bromonaphthalene) 溶液合的60nm聚 (MMA) 乳颗粒.
- 光谱分析证实,溶解物没有共价结合,并且嵌入在低极性粘性聚合物矩阵中.
- 烯的光寿命为520 ns,不受氧气影响;1-甲的光寿命为2.0 ms (),可以在空气中观察到.
结论:
- 描述的方法有效地产生了用功能光学溶液合的聚合物乳纳米颗粒.
- 聚合物矩阵提供了一个独特的微环境,影响嵌入溶液的光物理性质.
- 这些杂纳米颗粒有潜力用于需要特定光学功能的应用.
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