在区块共聚合物微粒中模拟两性分子的界面溶解
Amira Choucair1, Adi Eisenberg
1Department of Chemistry, McGill University, Otto Maass Chemistry Building, 801 Sherbrooke Street West, Montreal, Quebec H3A 2K6, Canada.
Journal of the American Chemical Society
|September 25, 2003
概括
我们研究了染料2 - 二基胺如何溶解在聚乙烯 - 块 - 聚 (?? 烯酸) 微粒中. 溶解发生在微粒界面,在核心内不均,并且取决于染料度.
科学领域:
- 聚合物科学 聚合物科学
- 物理化学 物理化学
- 超分子化学 超分子化学
背景情况:
- 疏水分子对水溶解具有挑战性.
- 两性块共聚合物微粒为溶解这些分子提供了潜在的潜力.
- 了解溶解的确切位置和机制至关重要.
研究的目的:
- 为了研究2 - 二基胺在聚烯 - 块 - 聚烯 (?? 烯酸) 微粒中的溶解.
- 为了确定溶解能力和微粒-水分区系数.
- 阐明微粒结构内溶解的位置和机制.
主要方法:
- 聚乙烯的制备和表征 (310) - 块 - 聚烯 (?? 烯酸) (47) 米塞尔.
- 对2 - 二基胺溶解的光谱分析.
- 测量Solvatochromic测量以确定溶解点的位置.
- 应用Langmuir吸附模型来分析溶解异热.
主要成果:
- 溶解能力和分离系数取决于染料度,表明非线性行为.
- 溶解发生在微粒界面,而不是在疏水核内.
- 聚烯酸冠状体在稳定溶解分子方面发挥着作用.
结论:
- 状接口是2-基胺溶解的主要部位.
- 溶解是一种由界面面积和溶解剂亲和力影响的结合过程.
- 块共聚合物微粒为疏水分子溶解提供了一个可调的环境.
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